Explanation: The image is of a laptop. The touchpad is visible on the laptop, although it is not clearly distinguishable due to its design and the angle of the image.

Answer: 1


Explanation: The image shows a laptop with its screen open and keyboard visible. The keyboard is gray, and the keys are clearly visible. The space bar is located at the bottom center of the keyboard and is a long key that spans the width of the keyboard between the letter keys. Upon examining the image, we can see that the space bar is visible.

Answer: 0


Explanation: The image shows a silver laptop with the lid open. The Apple logo is visible on the back of the lid, and it is clearly seen as it is centered and not obstructed by any other objects.

Answer: 0


Explanation: The image clearly shows a Triumph motorcycle with a visible handlebar. The handlebar is positioned at the top of the motorcycle's front end and is easily identifiable. Therefore, the correct answer is that the handlebar is clearly visible.

Answer: 0


Explanation: The image shows a computer monitor displaying the University of British Columbia Okanagan Campus login screen. The taskbar at the bottom of the screen contains several icons, including the Windows Start button, which is visible but not clearly labeled as such. It is represented by a Windows logo icon.

Answer: 1


Explanation: The image clearly shows a motorcycle with two round headlights visible on the front.

Answer: 0


Explanation: The image shows a Samsung remote control with a red button at the top right corner labeled with a power symbol, indicating it is the power button.

Answer: 0


Explanation: The image shows a clear view of a runway with the number '30R' painted on it. The number is visible and easily readable.

Answer: 0


Explanation: The image shows a black computer mouse with a visible circular label at the top-left corner, which appears to be the sensor window. Although the image is not very clear, the label is discernible. Therefore, it can be concluded that the sensor window is visible but may be hard to see due to the image quality or angle.

Answer: 1


Explanation: The image depicts a train on tracks with gravel beside them, and the tracks are clearly visible in the foreground.

Answer: 0


Explanation: The image shows a train with a clear front view. The driver cab windows are visible and appear to be quite clear, making it easy to see them.

Answer: 0


Explanation: The image shows a Windows desktop with the taskbar visible at the bottom. The Windows logo, which represents the Start button, is present on the taskbar.

Answer: 0


Explanation: The image shows a sink with a visible drain hole in the center of the basin. Although the detection confidence is low, the drain hole is clearly visible upon closer inspection.

Answer: 0


Explanation: The image shows a luxury watch with a complex face and a metal band. The watch is positioned in the center of the image, and its face is clearly visible. Upon closer inspection, there is a small protrusion on the right side of the watch case, which is likely the crown. Although it is not very distinct, it can be inferred that the crown is present.

Answer: 1


Explanation: The image shows a helicopter with a main rotor that is clearly visible. The main rotor is the large set of blades on top of the helicopter, which are used to generate lift.

Answer: 0


Explanation: The image shows a train with visible headlights on the front.

Answer: 0


Explanation: The image clearly depicts a commercial airplane with two visible engines under its wings. These engines are easily identifiable due to their distinct shape and location.

Answer: 0


Explanation: The image shows a plane flying towards the viewer, and two engines are visible on the wings.

Answer: 0


Explanation: The image shows a plane flying towards the viewer. The cockpit is visible at the front of the plane. Upon closer inspection, the cockpit windows are visible as darkened rectangular shapes at the top of the nose section. Although they are not clearly visible due to the distance and lighting conditions, they can be inferred to be present.

Answer: 1


Explanation: The image clearly shows a United Airlines plane with its tail section visible. The vertical stabilizer is part of the tail section and is clearly visible in the image.

Answer: 0


Explanation: The image shows a backpack on an office chair. Upon closer inspection, the top of the backpack is visible and has a handle. The presence of this handle is evident as it is positioned at the top of the backpack.

Answer: 0


Explanation: The image is of a red Alfa Romeo 4C driving on a road. Upon closer inspection, we can see that the side view mirror on the driver's side is visible. It is attached to the door of the car and is reflecting some of the surrounding environment. The mirror is clearly visible, although it is not the main focus of the image.

Answer: 0


Explanation: The image shows a disposable coffee cup lid with a visible sip hole. The lid is white and has a circular shape, with a small opening on one side that serves as the sip hole. The sip hole is partially filled with a brown liquid, likely coffee or tea, which makes it more noticeable. The lid is placed on a light-colored wooden table, and the background is out of focus. Overall, the sip hole is clearly visible in the image.

Answer: 0


Explanation: The image shows a white Apple power adapter. Upon closer inspection of the image, it is evident that there is a small opening on the bottom edge of the adapter, indicating the presence of a USB port, although the port itself is not directly visible.

Answer: 1


Explanation: The image clearly shows a white coffee cup with a lid, and on the lid, there is a visible sip hole. The sip hole is centered and appears to have some residue around it, indicating it has been used.

Answer: 0


Explanation: The drain is visible but hard to see because it is not clearly defined and is located at the bottom of the basin, which may make it difficult to notice at first glance.

Answer: 1


Explanation: The latch bolt is not clearly visible in the image as it is partially hidden by the door frame. However, its presence can be inferred from the gap between the door and the frame, and it is visible enough to be identified.

Answer: 1


Explanation: The image shows a door with a visible handle on the right side. The handle is silver and appears to be a standard lever-style handle. It is clearly visible against the gray door.

Answer: 0


Explanation: The image shows a water fountain with its cover open. The fountain has a metal basin and a spout, which is commonly known as a bubbler. The bubbler is visible in the image, and it appears to be in working condition.

Answer: 0


Explanation: The image shows a hand holding a white earbud, and the charging port is visible on the earbud.

Answer: 0


Explanation: The image depicts a black PlayStation 4 controller on a blue background. The controller is centered in the image and is oriented with its front facing upwards. The controller has two prominent joysticks, one on the left side and one on the right side, both of which are clearly visible.

Answer: 0


Explanation: The Apple logo is visible on the back of the device, and it is centered and clearly seen.

Answer: 0


Explanation: The image shows a hand holding an iPad with a camera visible on the top left corner. The camera is clearly visible through the clear case covering the iPad.

Answer: 0


Explanation: The image shows a hand holding a white object with a visible charging port on it. The charging port is clearly visible as it is facing upwards and is not obstructed by any other objects or parts of the hand.

Answer: 0


Explanation: The image shows the back of an iPhone, and at the top left corner, there is a visible camera lens. This indicates that the camera is present and visible in the image.

Answer: 0


Explanation: The battery percentage is visible in the top-right corner of the tablet screen. It is displayed as '17%', indicating that the battery is not fully charged. The visibility of this information is clear, making it easy to determine the battery level at a glance.

Answer: 0


Explanation: The image shows a smartphone positioned with its bottom edge facing the viewer. The bottom edge features several ports and holes, including what appears to be a speaker grille, indicated by a series of small holes on the right side of the bottom edge. Although the speaker itself is not directly visible, the presence of these holes suggests the existence of a speaker. Therefore, while the speaker is not directly visible, its presence can be inferred from the visible speaker grille.

Answer: 1


Explanation: The image shows the back of an iPad with a case attached to it. The bottom edge of the iPad is visible, and there are four small circular indentations that are likely the Smart Connector pins. These pins are used for connecting accessories like keyboards. Although they are not the main focus of the image, they can be seen upon closer inspection of the bottom edge of the iPad.

Answer: 0


Explanation: The image shows a keyboard with a clear view of its keys. Upon closer inspection, the space bar is visible at the bottom of the keyboard.

Answer: 0


Explanation: The image shows a laptop with a visible keyboard and a flat, dark area below it, which is the touchpad. The touchpad is clearly visible as it is part of the laptop's design.

Answer: 0


Explanation: The image shows the back of a MacBook Pro laptop on a wooden table. The laptop has four rubber feet visible, one at each corner, which are slightly raised and appear to be made of a dark material. These rubber feet are designed to provide stability and prevent the laptop from slipping or sliding on the surface it's placed on.

Answer: 0


Explanation: The image shows a laptop keyboard with various keys, including the arrow keys located on the bottom right part of the keyboard. Upon closer inspection, the arrow keys are visible, although they are not very prominent due to the overall condition of the keyboard.

Answer: 1


Explanation: The train has two visible headlights, one on each side of the front, which are clearly illuminated. This indicates that the train is operational and ready to move.

Answer: 0


Explanation: The image shows a smartphone with a silver frame and a black screen. The bottom edge of the phone is visible, featuring a circular indentation that is likely the home button. Although the detection confidence is less than 0.1, indicating uncertainty, the visual inspection confirms the presence of a home button. Therefore, the home button is clearly visible.

Answer: 0


Explanation: The image shows a computer mouse on a white desk. The mouse is black and has a scroll wheel. Although the scroll wheel is not prominently highlighted, it is visible between the two main buttons, indicating its presence.

Answer: 0


Explanation: The image shows a train on the tracks with the front of the train clearly visible. The front of the train has a windshield that appears to be the driver's window. However, upon closer inspection, it is not entirely clear if this is the driver's window or just the front window of the train.

Answer: 1


Explanation: The image shows a white electrical outlet mounted on a wall. The outlet has two parallel slots and a rounded hole below them, which is typically associated with a ground pin. The ground pin hole is clearly visible in the image.

Answer: 0


Explanation: The image shows a motorcycle with its rear end facing the camera. Although the handlebar is not directly visible, parts of it are seen near the headlights and mirrors, making it somewhat discernible but not entirely clear.

Answer: 1


Explanation: The image shows a white electrical outlet with two visible screws, one at the top and one at the bottom. The top screw is partially visible as it is covered by a label, while the bottom screw is fully visible.

Answer: 0


Explanation: The image shows a wall outlet with two screws visible. One screw is located on the outlet cover plate, and another is on the top right corner of the plate. Both are clearly visible.

Answer: 0


Explanation: The image shows a stainless steel sink with a visible drain hole in the center of the basin. The drain hole is circular and has a gold-colored grate in the middle, making it clearly visible.

Answer: 0


Explanation: The image shows a sink with a faucet and a drain. Upon closer inspection, there are two small holes on either side of the sink, which are likely overflow holes. Moreover, the image is clear and well-lit, making it easy to see these details.

Answer: 0


Explanation: The detection confidence is very low (0.0345), indicating that the object 'track' was not confidently detected. However, upon examining the original image, it is clear that there are railway tracks visible.

Answer: 0


Explanation: The image shows a balance scale (托盘天平/tray balance) used for measuring mass. While there is a pointer scale at the top center of the device, this is a mass measurement indicator, not a ruler. A ruler is a straightedge tool with length measurement markings (cm, mm, inches) used for measuring distance/length. The scale in this image only has markings related to mass measurement for balancing. No ruler is present in the image.

Answer: 2


Explanation: Looking at the black Columbia vest, while the zipper track itself is present down the center front of the vest, the zipper pull/tag (the tab used to open/close the zipper) is not visible. The vest appears fully zipped up to the collar, and the zipper pull is either hidden behind the zipper placket, tucked inside, or blends in completely with the black fabric. No zipper tag is apparent at the top, bottom, or anywhere along the zipper line.

Answer: 2


Explanation: While the pressure gauge housing itself is visible at the top of the extinguisher below the handle mechanism, the needle indicator inside the gauge dial is not discernible in this image. The detection analysis shows a confidence score of less than 0.1 for detecting a needle, confirming that it is not visible or distinguishable against the gauge face.

Answer: 2


Explanation: Looking at this classical guitar image, I can see white cylindrical rollers in the slotted headstock where the strings wrap around. However, the actual tuning pegs (the knobs/buttons that you turn to adjust the pitch) are mounted on the back side of the headstock and are not visible from this front view. Classical guitars have their tuning mechanisms oriented such that the worm gears and buttons are on the rear surface of the headstock, leaving only the rollers visible from the front. Since the question asks about 'tuning pegs' and typically this refers to the part you interact with to tune the instrument, they are not visible in this image.

Answer: 2


Explanation: Upon careful examination of the violin image, the f-holes (the characteristic sound holes shaped like an 'f' on each side of the bridge) appear very difficult to distinguish. The front-facing view, combined with the lighting and the warm amber color of the wood varnish, causes the f-holes to blend significantly with the surrounding surface. While f-holes are standard features on violins, in this specific photograph they are extremely hard to see and do not stand out clearly against the violin's body.

Answer: 1


Answer: 2

Explanation: The image shows a wheelchair with two large rear wheels clearly visible - one prominently on the left and one partially obscured behind the seat on the right. However, the small front caster wheels (typically 6-8 inches in diameter) that are normally mounted on the front frame near the footrests are not visible in this image. They appear to be either completely obscured by the footrest assembly and frame structure, hidden by the angle of the photograph, or positioned outside the frame of the image.


Explanation: The image shows a mechanical tray balance (托盘天平) with two white pans, side adjustment knobs, a central support column, and a beam with a descending pointer wire. A dial would typically be a circular or semi-circular face with graduated markings and numbers. While there is a pointer mechanism visible, there is no visible dial face or graduated scale plate that the pointer would indicate against. The central grey column simply supports the beam without any visible dial attachment. Standard beam balances like this one typically rely on comparing masses on the two pans rather than reading from a dial, and in this specific image, no dial is present.

Answer: 2


Answer: 2

Explanation: Upon careful examination of the violin image, there are no strings visible on the instrument. The areas where strings would normally be strung - from the tailpiece at the bottom, over the bridge, and along the fingerboard to the tuning pegs - show no visible strings. While the bridge and tailpiece are present, the thin lines of the strings themselves are not discernible in this image. Additionally, automated detection confirms extremely low confidence (<0.1) for string detection, indicating they are essentially undetected/undetectable in this image.


Explanation: Looking at the image of the violin, I can identify the tuning pegs located in the pegbox at the top of the instrument, just below the scroll. The tuning pegs appear as black cylindrical pegs extending horizontally from the sides of the pegbox. There are pegs visible on both the left and right sides of the pegbox (typically four pegs total on a violin, with some partially visible from this angle). They are distinct black objects against the lighter wood and are clearly distinguishable in the upper portion of the image.

Answer: 0


Explanation: A reflector (or mirror) in a compound microscope is typically located beneath the stage, attached to the arm or base, and is used to direct light upward through the specimen. In this image, the microscope is shown from a side angle. While the stage and base are visible, the area underneath the stage where the reflector/mirror would be mounted is not visible from this viewpoint. The base appears solid from this angle, and the reflective surface itself (if present) is positioned in a location that is obscured by the stage and arm structure, making it not visible in this photograph.

Answer: 2


Explanation: The fingerboard is the dark, long strip of wood (typically ebony) that runs along the neck of the violin underneath the strings. In this image, examining the neck area, I can see there is a darker strip visible under the four strings extending from the nut down toward the body. However, looking more carefully at the contrast and visibility, the fingerboard appears to blend somewhat with the neck and isn't as prominently distinct as it would be on a high-quality violin with a dark ebony fingerboard. The fingerboard is present but its visibility is moderate - it can be seen as a slightly darker area under the strings on the neck, though it doesn't stand out dramatically from the surrounding wood.

Answer: 1


Explanation: Looking at this microscope image, I can clearly identify the coarse focus knob (the large knurled wheel on the upper side of the microscope arm). However, the fine focus knob, which is typically a smaller knob located either concentric with the coarse knob, adjacent to it, or on the opposite side of the arm, is not visible in this photograph. The image shows primarily the left side of the instrument, and there is no smaller adjustment knob visible near the coarse focus knob or anywhere else on the visible portion of the microscope. The base, arm, and stage are visible, but the fine focus mechanism is either located on the hidden opposite side or cannot be discerned from this angle.

Answer: 2


Explanation: Stage clips are small metal clips located on the microscope stage that hold the glass slide in place during observation. In the provided image, while the microscope stage (the black platform) is clearly visible, there are no stage clips visible on it. The stage appears to be a flat, smooth platform without any visible clips or retaining mechanisms. From this viewing angle, if stage clips were present, they would typically be visible as small metal pieces extending upward from the stage surface.

Answer: 2


Explanation: The image displays a pair of scissors with black plastic handles. Each handle contains a distinct, oval-shaped opening (finger hole) that is unobstructed and clearly visible against the white background. These holes appear as dark oval shapes where fingers would be inserted to operate the scissors.

Answer: 0


Explanation: The image shows a simple cylindrical cup/container with a smooth, uniform surface. After carefully examining the entire object, there is no handle visible anywhere on it. The cup has a minimalist, handle-less design with no protrusions or attachments.

Answer: 2


Explanation: The image shows round spectacles with pink lenses. On the left side of the left lens, there is a thin black temple arm extending outward. Similarly, on the right side of the right lens, there is another thin black temple arm extending outward. These temple arms are present and can be seen, but they are quite thin and blend somewhat with the shadows and background. The low detection confidence (<0.1) suggests they are not prominently visible, though upon careful inspection they can be identified.

Answer: 1


Answer: 2

Explanation: Upon careful examination of the microscope image, the objective lens (which should be located at the bottom of the body tube, closest to the specimen stage) cannot be clearly identified. While there is a metallic fitting at the bottom of the white body tube, the actual objective lens element or its distinct housing is not clearly distinguishable. Automated detection analysis also indicates undetected status with very low confidence (<0.1), suggesting the objective lens assembly is not clearly present in the visible field. The component at the bottom of the body tube is too indistinct to confidently identify as the objective lens, and the actual glass lens element appears to be housed internally or obscured from view.


Explanation: On careful examination of the alarm clock image, while the clock has a numbered dial (1-12) and a central mounting hub where hands would typically be attached, there are no actual clock hands (hour hand or minute hand) visible extending from this center point. Only the central mechanism/screw is visible, but no hands are present.

Answer: 2


Explanation: Upon careful re-examination of the microscope image, I do not see the typical large coarse focus knob that would normally protrude from the side of the microscope arm. While there is a circular metallic component visible on the lower left side of the arm, this appears to be a mounting screw or bolt rather than an adjustment knob. The standard coarse focus knobs (which are usually substantial rotating wheels on the sides of the arm) are not visible in this image. They may be located on the opposite side, obscured by the angle of the photograph, or this microscope may use a different focusing mechanism.

Answer: 2


Explanation: The mug in the image has a flat top surface. The rim would be the circular edge where this top surface meets the cylindrical side wall. While this edge exists geometrically and can be inferred by the viewer, it is not visually prominent. The mug's uniform matte beige texture and color, combined with soft, even lighting, create minimal contrast at this boundary. The detection confidence score of ~0.015 (well below 0.1 threshold) confirms the rim is not a visually salient, clearly defined feature. However, it is not completely invisible either—the boundary can be discerned upon close inspection where the flatter top surface meets the curved side. Therefore, it is best described as visible but hard to distinguish from the rest of the mug's surface.

Answer: 1


Explanation: Looking at the alarm clock image, the clock face is completely plain white. There are no numbers (1-12), no hour markers, and no tick marks visible on the dial. The clock only shows the hour hand, minute hand, and second hand against a blank white background.

Answer: 2


Answer: 2

Explanation: The image shows two power strip units and two separate plug heads (one on the bottom left and one on the bottom right). However, upon close examination, there are no visible electrical cords, wires, or cables in the image. The plugs appear to be just the plug heads without any attached cords, and the power strips themselves do not show any visible power cords extending from them.


Explanation: The image shows a bronze-colored wall-mounted faucet with water flowing from it. While there is a cylindrical protrusion at the top of the faucet body where a handle would typically be attached (the valve stem housing), there is no actual handle lever, knob, or wheel visible that would be used to operate the faucet. The top appears to be just the valve body without a handle installed.

Answer: 2


Explanation: The image shows two white power strips with visible power cords, but the actual plug ends (the male connectors with prongs that insert into wall outlets) are not visible. Only portions of the white cords are shown coiled or trailing, but neither cord shows the termination plug.

Answer: 2


Explanation: Looking at the fire engine image, I can see wheel assemblies on the vehicle. However, specifically identifying the rubber tires (distinct from the wheel rims/hubs) - while wheels are present on the lower portion of the truck, the specific tire components are relatively small in the overall image and blend somewhat with the wheel structure. The detection confidence was very low (<0.1), suggesting tires are not prominently identifiable. They are present but not the clearest feature of the image.

Answer: 1


Answer: 2

Explanation: The image shows a red fire extinguisher with the pressure gauge, discharge hose, and nozzle visible. However, the squeeze lever (operating handle) that is typically located near the valve assembly is not visible in this image. The angle and perspective of the photograph show the front label and gauge area clearly, but the handle mechanism on the back or side of the valve assembly is not captured in this view. The detection confidence is very low (0.025), confirming the squeeze lever is not present in the visible frame.


Explanation: Analyzing the image of the Honeyson electric kettle, I can see the stainless steel body, black handle on the right side, black lid, and base. Electric kettles typically have a spout on the side opposite the handle for pouring. However, in this image, the left side of the kettle (where a spout would normally be located) shows a smooth, curved stainless steel surface without any protruding spout, pouring lip, or opening visible. The angle of the photograph primarily shows the right side and front of the kettle, and no distinct spout structure is visible on any of the shown surfaces. The body curves smoothly without any visible pouring mechanism.

Answer: 2


Explanation: The electric kettle has a prominent black handle on the right side of the stainless steel body. The handle is clearly distinguished from the main body by its black color, which contrasts sharply with the silver metallic finish. It extends vertically along the side of the kettle and is a standard feature of this type of appliance, making it easily identifiable and clearly visible.

Answer: 0


Explanation: The image shows a charging cable where the connector end is covered by a white protective cap. While the cap itself is clearly visible, the actual USB connector (the metal plug/pins that interface with a device) is obscured by this cap. Therefore, the USB connector itself is not visible in the image - only the protective covering over it can be seen.

Answer: 2


Answer: 0

Explanation: The right-hand pedal is clearly visible in the lower-center portion of the image. It is attached to the end of the crank arm that extends downward from the chain guard (the olive-green casing). The pedal body appears metallic silver and contrasts with the green frame and white background, making it easy to identify. It is not obscured by any other components.


Answer: 2

Explanation: The object in the image is labeled as a 'comb' (梳子), but examination reveals it has no visible teeth. The detection confidence for teeth is very low (0.044 < 0.1). The object has a smooth curved surface with only one small pointed protrusion, but lacks the multiple teeth or tines characteristic of a traditional comb. It appears to be a specialized hair tool (possibly a hair hook or styling tool) rather than a conventional comb.


Explanation: Looking at the bicycle, I can identify the handlebar component at the front of the bike. It consists of an L-shaped metal stem rising from the front fork, with a horizontal handlebar featuring a visible silver/grey end cap/grip at the top. This component is positioned in the upper front area of the bicycle and is clearly distinguishable from the frame, fork, and other components.

Answer: 0


Explanation: Upon examining the bicycle image, I can see the frame, wheels, handlebars, pedals, and chain guard are all present. However, looking at the seat post (the tube that extends upward from the main frame), there is no saddle (bike seat) attached to it. The seat post appears to be empty or the saddle is simply not present in the image.

Answer: 2


Explanation: Looking at the electric kettle image carefully, I examined all typical locations for indicator lights - the handle area, the base, and the body of the kettle. The kettle has a stainless steel body with black plastic components (handle, top lid, and circular base). Upon close inspection of all these areas, there is no visible LED indicator light anywhere on the appliance. The detection confidence result of 0.0068 (well below the 0.1 threshold) also confirms that no indicator light is present in the image.

Answer: 2


Explanation: Based on my analysis of the image and detection confirmation, I examined the standing fan from the front view. While fans typically have controls (switches, buttons, or knobs), they are often located on the back of the fan head or base where they are not visible from this front-facing angle. The image shows the fan head, vertical support pole, and base, but no switches, buttons, or control panels are visible from this perspective. The detection confirmation also indicates a very low confidence (0.02, well below threshold) for any switch detection. Therefore, the switch is not visible in this image.

Answer: 2


Explanation: The image shows a shopping cart with two curved handles at the top rear of the cart structure. These are the push handles that a person would hold to maneuver the cart. They are prominently visible and form part of the main frame at the top of the cart, extending upward and backward.

Answer: 0


Answer: 2

Explanation: The image shows the laptop's palm rest and trackpad area, but the actual keyboard keys are not visible. The keyboard deck appears as a flat, uniform silver surface without any distinguishable keys, key outlines, or keyboard layout details. While the physical area where a keyboard would be located is present in the image, the keyboard itself (the keys and their arrangement) cannot be seen or identified.


Explanation: The aircraft is photographed from the left side at a three-quarter angle. While the left side windows and part of the front windshield are visible, the windows on the right side of the aircraft are obscured because that side is facing away from the camera. Since not all windows can be seen from this angle, the answer is that all windows are not visible.

Answer: 2


Answer: 1

Explanation: Examining the shopping cart image, the wheels are extremely difficult to distinguish from the green metal frame. While there appear to be small green circular components at the base that could be wheels, they blend almost completely with the frame structure, share the same light green color, and are very small in proportion to the cart. A detection algorithm attempting to identify wheels returned a confidence score of only 0.0429 (<0.1), indicating the wheels are essentially undetectable by automated systems. They are not clearly distinguishable as separate wheel objects, requiring very careful inspection to potentially identify. Therefore, the wheels are technically present in the image but very hard to see.


Explanation: The image shows a Cessna aircraft parked on grass. Although this type of aircraft has a single propeller engine, the propeller itself is not visible in the photograph. The front nose section where the propeller would be mounted is visible, but no propeller blades are seen extending from it. They are either positioned edge-on and hidden from view, or not captured in this angle. Automated detection also confirms no propeller is detected with confidence below 0.1.

Answer: 2


Explanation: The image shows spectacles with pink-tinted lenses and a thin metal frame. Upon careful examination of the bridge area (where the frame rests on the nose), I can see the thin metal bridge connecting the two circular lens rims, but there are no visible nose pads. Nose pads are typically small, clear or colored pieces of silicone or plastic that attach to the frame near the bridge. In this image, the perspective and angle of the spectacles do not reveal any nose pads—they are either not present on this particular frame style (which may use a keyhole or saddle bridge design) or they are simply not visible from this angle. The metal arms that would typically hold adjustable nose pads are not apparent either. Given the clarity of the image and the angle at which the spectacles are presented, if nose pads were present, they should be somewhat visible, but they are not.

Answer: 2


Explanation: The vertical stabilizer is the upright fin at the tail of an aircraft. In this image, the Cessna 172 is photographed from a front-left angle. While the horizontal stabilizer is clearly visible extending from the tail, the vertical stabilizer is positioned on the centerline of the fuselage at the rear. From this front-three-quarter viewing perspective, the vertical stabilizer is obscured by the rear fuselage and is not visible in the frame. Only the horizontal tail surface can be seen extending outward, while the characteristic upright vertical fin is hidden behind the body of the aircraft from this viewpoint.

Answer: 2


Explanation: The image shows the toaster from a front-left angled perspective. While the top silver surface of the toaster is partially visible, the actual bread slot (the opening where bread is inserted into the toaster) is not visible from this camera angle. The photograph is taken at an angle that shows the front control panel and the side, but the slot opening on top is obscured or not within the line of sight. The detection analysis also confirmed no bread slot was detected.

Answer: 2


Explanation: After carefully examining the image, I can see a KitchenAid toaster with a red body and stainless steel front panel. The front panel features a rotary 'Shade' dial and two buttons labeled 'Cancel' and 'Bagel'. The left side shows the KitchenAid logo and a vent. The top shows the two toasting slots. I have examined all visible surfaces of the toaster in this image, and there is no lever visible. While many toasters have a lever to lower bread into the slots, this particular toaster either lacks a visible lever or it is located on a non-visible side (such as the back or right side, which are not shown in this angled view).

Answer: 2


Answer: 2

Explanation: Based on the detection analysis which showed very low confidence (<0.1) for detecting an engine, and upon careful examination of the image, the engine is not clearly visible. While Boeing 777 aircraft have engines mounted under the wings, from this specific side-view angle, the engine appears to be obscured or blends in with the wing structure such that it cannot be confidently identified as a distinct component.


Explanation: Examining the lower portion of the image, particularly the bottom left and center areas, there is a dark curved structure visible that appears to be the top rim of the steering wheel. It is quite dark and blends with the shadows, positioned just below the instrument cluster. While it can be identified upon careful inspection as the steering wheel rim wrapped in dark leather/material, it is not prominently displayed, lacks clear definition due to shadowing, and occupies only the very bottom edge of the frame.

Answer: 1


Explanation: The image shows the interior of a car from the driver's perspective, displaying the dashboard, steering wheel, and the forward view through the windshield. The rear-view mirror would typically be mounted at the top center of the windshield. However, examining the area near the top center of the windshield where one would expect to find the rear-view mirror, I can see only the car's headliner and overhead console. There is no rear-view mirror visible in the frame. The motion-blurred view through the windshield dominates the forward view, and the overhead area shows no reflective mirror surface.

Answer: 2


Explanation: The horizontal stabilizer is the horizontal tail surface at the rear of the aircraft. In this side-view image of the Cessna 172, I need to examine whether this surface is visible. Looking at the tail section, the vertical stabilizer (tail fin) is clearly prominent. The horizontal stabilizer would be positioned perpendicular to the vertical stabilizer, extending left and right from the base of the vertical tail. From a side-view perspective like this, the horizontal stabilizer would be viewed nearly edge-on (perpendicular to the line of sight), making it appear as a very thin line or potentially blending into the background. While one might perceive a subtle horizontal surface near the tail upon close inspection, the feature is not distinctly visible or identifiable with confidence. An automated detection system also failed to identify the horizontal stabilizer with significant confidence (confidence < 0.1). Given the geometry of this viewing angle and the lack of a clearly distinguishable surface, the horizontal stabilizer is not visible in this image.

Answer: 2


Answer: 1

Explanation: The cockpit windows are located at the front of the aircraft on the upper fuselage. In this side-profile image, the nose section is included in the frame, and the cockpit windows are technically visible as small dark rectangular features. However, they occupy a very small portion of the image (at the far right edge), have limited contrast against the white fuselage, and are not prominent compared to larger features like the engines, landing gear, and United logo. While they can be identified upon close inspection of the nose area, they require deliberate attention to locate and are not immediately obvious, fitting the description of being visible but hard to see.


Answer: 2

Explanation: Looking at this side-view image of the United Airlines Boeing 777, the horizontal stabilizer (the horizontal tail surfaces) is not clearly visible. While the vertical stabilizer (tail fin) with the blue and white globe logo is prominent, the horizontal stabilizer that would extend horizontally from the rear fuselage is either obscured by the vertical stabilizer from this angle, hidden on the far side of the aircraft, or blends into the tail section without clear definition. The detection analysis confirms this with very low confidence (<0.1) for detecting the horizontal stabilizer in the image.


Explanation: Looking at the image, while the seat post (the vertical black tube that extends upward from the frame) is clearly visible, there is no actual padded seat/saddle mounted on top of it. The seat post ends with what appears to be the seat clamp mechanism, but the seat itself that a rider would sit on is not present or visible in this image.

Answer: 2


Answer: 2

Explanation: Analyze the image of the Pedego electric bicycle. The bike is shown at an angle where the drivetrain (chain and gears) is partially visible on the right side. The crank arm is visible extending from the bottom bracket area. However, looking carefully at the position where the pedal should be attached to the crank arm, no distinct pedal is visible. The detection algorithm confirms this with a very low confidence score of 0.0269 (well below the 0.1 threshold), indicating the pedal is essentially undetected in this image. The pedal may have been removed for the product photography, positioned edge-on so it isn't visible, or obscured by other components in this particular angle. Therefore, the pedal is not visible in the image.


Explanation: The image shows a green Pedego electric bicycle. While the stem post (vertical tube) extending from the front fork is visible, the actual handlebar itself is not present or visible. Only the bare stem is shown, with no horizontal handlebar or grips attached.

Answer: 2


Explanation: The sip hole, which is the opening on the rim of the lid designed for drinking, is clearly visible. Although the lid is white, the sip hole is distinctly marked by the presence of green liquid visible through the opening, creating a clear contrast that makes it easy to identify.

Answer: 0


Explanation: The image shows the back of an iPad leaning against a wall. Speaker holes on iPads are located on the bottom and/or top edges of the device, not on the back panel. Since this image primarily displays the back surface of the iPad with the edges mostly hidden or not clearly visible, the speaker holes cannot be seen in this photograph.

Answer: 2


Answer: 2

Explanation: The image shows a United Airlines Boeing 777 from a side/below viewing angle. While the horizontal stabilizer (the horizontal tail wing) is clearly visible on the left side of the image, the vertical stabilizer (the upright tail fin that normally stands perpendicular to the horizontal stabilizer) is not visible. From this perspective, the vertical stabilizer is positioned perpendicular to the viewing angle and is either obscured by the rear fuselage or aligned edge-on with the tail cone, making it undetectable in the frame.


Explanation: Upon closer examination of the image, the center of the iPad's back panel where an Apple logo would typically be located appears completely plain and void of any visible branding. While iPads typically have an Apple logo above the 'iPad' text, in this particular photograph, no Apple logo is discernible - whether due to lighting, angle, or post-processing. The detection analysis confirms this with a confidence score below 0.1, indicating the logo is essentially absent from the visible detail in this image.

Answer: 2


Explanation: Upon closer analysis with detection assistance, the charging port at the bottom edge of the iPhone has a detection confidence of only 0.028 (below 0.1 threshold), which classifies it as 'undetected'. While the bottom edge of the phone is visible in the image, the actual charging port opening is not clearly distinguishable or identifiable, likely due to the angle, lighting, or resolution at that specific location. The speaker grilles are visible, but the charging port itself is not clearly visible.

Answer: 2


Explanation: The image shows the back of a light green iPhone held in a hand. While iPhones typically have camera modules in the top-left corner of the back, this image shows a completely smooth and uniform back surface with only the Apple logo visible in the center. There is no camera bump, lens, or camera module visible anywhere on the device in this image.

Answer: 2


Explanation: The image shows the back of an iPad positioned at an angle. While the Apple logo is clearly visible in the center and the word 'iPad' appears at the bottom, I cannot see any camera lens or camera module. The rectangular band at the top of the device appears to be a cellular antenna line (found on cellular-equipped models), not a camera. iPad cameras are typically located in the upper corner, but from this viewing angle and perspective, no actual camera lens or bump is visible in the image.

Answer: 2


Explanation: Looking at the laptop keyboard, there is a key visible in the top-left position where the Esc key is located on standard keyboard layouts. While the key itself is present and identifiable by its position, the specific 'Esc' text label on the key is very small and difficult to read clearly due to the image resolution, angle, and lighting. The key is physically visible and recognizable to someone familiar with keyboard layouts, but the labeling is not crisp or easily readable.

Answer: 1


Explanation: Looking at the laptop keyboard in the image, the space bar is identifiable as the long horizontal key located at the bottom center of the keyboard, positioned below the letter keys (X, C, V, B, N, M row). The keyboard is displayed at a clear angle with good visibility, and the space bar stands out as the longest key on the keyboard between the Alt keys. The silver/gray color of the keyboard against the darker keys makes it distinguishable.

Answer: 0


Explanation: After carefully examining the keyboard layout in the image, I can see that the top-left corner of the function key row starts with the F1 key. The Esc key, which is typically located to the left of F1 in standard keyboard layouts, is not present in this visible area. The leftmost key visible in the top function row is clearly labeled F1, and there is no separate Esc key visible above the ~/` key or in any other location on the keyboard. The detection tool also confirmed undetected with very low confidence (<0.1) for the Esc key.

Answer: 2


Explanation: Looking at the bottom center of the white iPhone in the image, the home button would typically be located there. However, this is a white iPhone with a white home button that blends almost completely with the white bezel. Upon close inspection, there is no clearly discernible circular button, depression, or distinguishing mark that can be confidently identified as the home button. The white-on-white color scheme makes it effectively invisible in this photograph. Additionally, automated detection systems returned a confidence score below 0.1, indicating the home button is essentially undetectable in this image.

Answer: 2


Explanation: The image shows a silver MacBook Air from a side/back angle with the lid partially open. The back of the display lid is plain silver aluminum with no visible Apple logo - no illuminated logo, no etched logo, no cutout visible. The surface is completely clean and unmarked. The low detection confidence of 0.035 also confirms no Apple logo is present.

Answer: 2


Explanation: The detection algorithm returned a confidence score of 0.028 (<0.1 threshold), which indicates the touchpad is 'undetected'. While the palm rest area where the touchpad is located is visible in the image, the touchpad itself has no visible boundaries, borders, or color differentiation from the surrounding palm rest surface. It appears completely flush and seamless with the rest of the chassis, making the touchpad itself indistinguishable as a separate component.

Answer: 2


Explanation: Looking at the iPhone in the image, I can see the bottom edge which shows the Lightning charging port in the center and the speaker grille holes on the right side. However, I do not see the 3.5mm headphone jack, which on the iPhone 5 would be located on the bottom left edge. The angle of the photograph and the leftmost portion being slightly out of frame means the headphone jack is not visible in this image.

Answer: 2


Explanation: Looking at the bottom of the mouse shown in the image, I can identify several features: the circular 'LONDON POWER OK' sticker, small ventilation/speaker holes, a large elliptical raised area in the center, the product label with model information, mouse feet, and the cable. However, I cannot locate the characteristic sensor window that would typically appear as a small rectangular or circular opening/clear window where the optical LED or laser emits. While there is an elliptical raised area in the center that might house the sensor, there is no visible optical sensor window in this image. The detection confidence for the sensor window is very low (<0.1), confirming it is undetected.

Answer: 2


Explanation: The motorcycle is shown from a low front-three-quarter angle. While the headlights, fuel tank, engine, and exhaust are clearly visible, the handlebars would be located behind the headlight assembly and would typically extend outward from the top of the front forks. From this specific camera angle and perspective, the handlebars are completely obscured by the motorcycle's bodywork, primarily hidden behind the large headlight assembly and fuel tank. No part of the handlebars can be seen in this image.

Answer: 2


Explanation: Looking at the runway surface in the image, I can see the threshold markings (wide white stripes at the near end), the centerline, and the aiming point markers further down. However, there are no large white numerical digits painted on the runway surface that would indicate the runway designation number (such as '09', '27', '35', etc.). Runway numbers are typically painted in large characters near the threshold and would be easily visible if present.

Answer: 2


Explanation: Looking at the Dell monitor displaying the UBC Okanagan Campus login screen, while a Windows taskbar is visible at the bottom of the screen with a Search box and system icons, the Windows Start button (Windows logo icon) cannot be clearly identified. The detection system returned an 'undetected' result for the Windows Start button with confidence below 0.1, indicating it is not present or visible in the image.

Answer: 2


Explanation: I have carefully examined all buttons on the Samsung remote control in the image. The visible buttons include: number pad (0-9), VOL+/-, CH+/-, MUTE, MENU, SMART HUB, TOOLS, GUIDE, INFO, SOURCE, colored buttons (A, B, C, D), navigation arrows, RETURN, EXIT, and media control buttons. I specifically looked for a power button (typically marked with ⏻ symbol or "POWER" label), which is usually located at the top of remotes. While the SOURCE button is visible at the top right, there is no power button visible anywhere on this remote in the image. The top area appears to be cut off or the power button is simply not present in the visible frame.

Answer: 2


Explanation: The train tracks run beneath the locomotive and extend along the gravel bed. While they are technically present in the image, they blend significantly with the surrounding ballast stones and are not prominently distinct. The rails can be seen if one looks carefully, particularly near the front of the train, but they merge into the gravel texture making them somewhat difficult to distinguish at a glance.

Answer: 1


Explanation: Looking at the front of the Amtrak P42 Genesis locomotive (unit #146), the headlight fixture is not distinguishable in the image. While these locomotives do have headlights mounted on the front nose, in this particular photograph, the headlight cannot be clearly identified - it blends in with the blue paint scheme and is not illuminated. The front of the train shows the Amtrak logo and number 146, but no headlight is visible.

Answer: 2


Explanation: The headlight is typically located at the front of the motorcycle, usually mounted on or between the front forks. Examining this image of the Triumph Rocket III, which is taken from a three-quarter side angle, the headlight assembly is obscured by the front fork structure and the angle of the photograph. The chrome headlight housing that would normally be visible at the front of the bike is not in view from this perspective. The detection algorithm also confirms a very low confidence score (0.038), indicating the headlight is undetectable in this image.

Answer: 2


Answer: 2

Explanation: While the bottom edge of the iPhone is visible in the image showing the headphone jack and Lightning charging port, the specific speaker holes located on the bottom right of the device are not clearly distinguishable. The small grille holes blend with the metal finish and are not prominently visible from this angle and lighting. Additionally, detection analysis indicates very low confidence (0.043) in identifying speaker holes, supporting that they are effectively not visible in this image.


Answer: 2

Explanation: Looking at the taskbar at the bottom of the image, the leftmost visible icon is the Internet Explorer icon (circular blue 'e' with gold ring). The Windows 7 Start button should appear as a circular orb with the four-colored Windows flag logo at the very left edge of the taskbar, to the left of any pinned icons. Since there is no Windows logo Start button visible to the left of the Internet Explorer icon, and IE appears to be the first icon in the taskbar, the Start button is not visible in this image.


Explanation: The crown, which is typically located at the 3 o'clock position on the side of the watch case, is not visible in this image. The photograph is taken from a top-down angle showing the dial and bracelet, but the side of the case where the crown would protrude is either not captured from this perspective or the crown is hidden from view. The metal case appears continuous on the visible sides without any protruding crown mechanism.

Answer: 2


Explanation: Examining the helicopter image, while the tail rotor is clearly visible at the rear, the main rotor assembly (the large horizontal blades on top of the helicopter) is not present in the frame. The photo shows the upper fuselage and what appears to be the rotor hub mounting area, but the actual main rotor blades themselves are not visible - they may have been removed, are folded back out of frame, or the photo composition excludes them.

Answer: 2


Answer: 2

Explanation: From this head-on perspective of the aircraft on final approach, the cockpit windows are positioned on the front upper fuselage but are not distinguishable. The direct frontal viewing angle causes the windows to blend in with the surrounding white fuselage structure and nose cone. The contrast is insufficient to distinguish the dark cockpit window frames against the aircraft's livery at this angle and distance, making them effectively invisible in the image.


Explanation: The image shows a wall-mounted stainless steel drinking fountain. Upon careful examination of the basin area, the bottom surface appears smooth and continuous without any visible openings or holes that would indicate a drain. The basin is concave and shows no visible drain hole from this viewing angle. While drinking fountains typically have drains built into them, the drain hole is not visible in this particular image.

Answer: 2


Explanation: Looking at the image, I need to identify if there's a top lift handle on the backpack. At the very top center of the backpack, between the shoulder straps, there appears to be a handle loop. However, given the black-on-black coloring, the angle of the photograph, and the low detection confidence reported, this handle is present in the image but not extremely prominent or clearly defined. It blends with the dark backpack material and is only partially visible due to the angle showing the back of the backpack.

Answer: 1


Explanation: The automated object detection analysis returned a confidence score of only 0.028 (well below the 0.1 detection threshold) for identifying an engine in the image. From this specific front-below camera angle, the engine nacelles appear to be obscured by the wing structure and fuselage, and/or blended into the shadows and darker areas beneath the aircraft. The dramatic cloud lighting and perspective make the engines essentially indistinguishable or completely hidden from view.

Answer: 2


Explanation: Looking at the image, I see an Apple MagSafe power adapter (likely for a MacBook) resting on a wooden table. The device shows the white square housing with an Apple logo. I need to check if any USB port is visible. USB ports are typically rectangular openings where USB plugs can be inserted. From this angle, I can see the top surface and one side of the adapter. There is a small metal contact visible on the upper right side, but this is not a USB port - it's likely the MagSafe connector attachment point or a plug. The actual USB port (if this model has one) would be on the opposite side or not visible from this angle. The detector also confirms undetection with very low confidence (0.016). No USB port opening is visible in this image.

Answer: 2


Explanation: The image shows a white disposable coffee cup lid with a distinct opening that has brown coffee residue/stains around it. This opening is the sip hole, and it is clearly visible against the white plastic of the lid, especially with the brown liquid residue highlighting its location. There is no obstruction hiding it, and the contrast makes it easy to identify.

Answer: 0


Explanation: The image shows the front of an Amtrak GE Genesis P42 locomotive (#146). While this locomotive type does have front windows for the operator, they are not visible in this photograph. The blue nose of the locomotive appears as a solid surface with no distinguishable window panels, transparent glass, or framing visible. The windows are likely heavily tinted or the angle and lighting conditions cause them to blend completely with the blue paint scheme. No transparency, reflection patterns, or window edges can be detected to indicate the presence of driver cab windows.

Answer: 2


Explanation: The image shows a bottom view of a commercial aircraft against a bright white sky background. While this is a view where engines would typically be visible mounted under the wings, the visual detection analysis returned a confidence score of less than 0.1 (0.0033) for 'engine', which falls into the undetected category. The engines, which should appear as cylindrical structures beneath the wings, are either completely obscured by shadows, blend too much with the wing structure and undercarriage, or are positioned at an angle that makes them indistinguishable in this particular photograph. The lack of contrast and the high-key background make it impossible to clearly identify engine nacelles.

Answer: 2


Explanation: Upon careful examination of the image, there is a vertical metallic handle visible on the right side of the door. It appears to be a silver/gray pull handle with a dark button or sensor integrated into it. The handle is prominent and clearly visible against the gray door color.

Answer: 0


Explanation: The image shows a stainless steel EZH2O water fountain unit mounted on a wall. A 'bubbler' is a regional term for a drinking fountain or water fountain. The entire fountain unit is prominently displayed in the center of the image, including the basin, the bottle filler station above, and the wall-mounted fixture. While this appears to be a combination bottle-filling station with a drinking fountain basin, the unit as a whole - which would be referred to as a 'bubbler' in common parlance - is clearly and prominently visible.

Answer: 0


Explanation: Looking at the water fountain basin in the image, I need to identify if a drain is visible. The image shows a stainless steel drinking fountain basin with some water droplets on the surface. While drinking fountains typically have drains, I cannot see a visible drain hole, grate, or opening in this particular view of the basin. The drain would typically be located at the bottom of the basin, but it is not visible in this image from this angle. The detection analysis also confirms this with very low confidence for detecting a drain (<0.1).

Answer: 2


Explanation: The image shows a blue office door with a silver lever handle, viewed from the side with the door partially open. While the door edge, handle mechanism, and rosette are visible, there is no protruding cylindrical metal latch bolt visible extending from the door edge. The latch bolt is the spring-loaded component that would normally extend outward from the door edge to engage with a strike plate, but it is not visible in this photograph.

Answer: 2


Explanation: The image shows an AirPods charging case from a side/bottom angle. The charging port is typically located on the bottom center of the case. From this viewing angle, while the bottom edge with speaker holes is partially visible, the actual charging port opening is not in view. The case is angled such that the port area is obscured or facing away from the camera.

Answer: 2


Answer: 0

Explanation: The image displays a PlayStation DualShock 4 controller which features two prominent analog joysticks positioned centrally. They appear as two circular protruding controls located below the directional pad (left joystick) and below the action buttons on the right (right joystick). These thumbsticks are clearly distinguishable with distinct circular shapes and raised positioning, making them easy to identify.


Explanation: The image displays a white AirPods charging case being held against a wooden surface. While we can see the bottom edge of the case with three speaker holes clearly visible, the charging port itself (whether Lightning or USB-C) is not shown in the photograph. The angle captures the side and partial bottom edge where the speaker holes are, but the charging port opening is obscured by the hand position, facing away from the camera, or out of frame entirely. Only the speaker grille and microphone holes are visible on this edge of the device.

Answer: 2


Answer: 2

Explanation: The image shows the back of what appears to be an iPad, but there is no Apple logo visible on the device. The back panel appears plain and silver/gray without any logo markings. A detection model also confirms the Apple logo is undetected with very low confidence (<0.1).


Explanation: Looking at the image of the red Alfa Romeo 4C, I need to check for the presence of a side view mirror. The car is photographed from a front-three-quarter angle showing the driver's side. Examining the door area and A-pillar carefully, the side view mirror that would normally be mounted on the driver's side door is not visible in this frame. The angle of the photograph captures the front and side of the car, but the side mirror is positioned either behind the visible plane or outside the frame of the shot. The detection confidence of 0.0077 confirms the mirror is not detected in the image.

Answer: 2


Explanation: Looking at the tablet screen, I can see the time (22:05), a lock icon, 'Swipe up to unlock' text, and some small text about selecting courses. However, there is no battery icon or battery percentage visible in the status bar area. The top-right corner and other typical locations for battery indicators show no such information.

Answer: 2


Explanation: While there is a camera cutout/bump area visible in the top left corner of the iPad case, the actual camera lens itself is covered by the clear case material and not directly visible. The oval area shows only the case covering where the camera would be, not the camera lens itself.

Answer: 2


Explanation: The image shows the back of an iPhone lying face-down on a white surface, along with a pair of AirPods. The back of the iPhone is visible with the Apple logo and 'iPhone' text, but the camera module (which is typically located in the top-left corner on iPhone models) is either outside the frame or not visible from this angle. No camera lens, camera bump, or camera module is identifiable in the image.

Answer: 2


Explanation: The Smart Connector pins on iPads are typically located on the back left edge of the device. In this image, that area is covered by the light green magnetic strap/case, which obscures the view of where the pins would be located. The detection analysis also confirms a very low confidence (<0.1) for detecting smart connector pins. Therefore, the pins are not visible in this photograph.

Answer: 2


Answer: 2

Explanation: The vertical stabilizer is the upright fin at the tail of an aircraft. Looking at the image, while the horizontal stabilizer (the side wing-like structure at the rear on the left) is clearly visible, the vertical stabilizer (the upright tail fin) is not present in the frame. The photograph appears to be cropped or the angle is such that the upright tail fin is out of frame. The detection model also confirms no vertical stabilizer is detected.


Answer: 0

Explanation: The space bar is the elongated rectangular key located at the bottom center of the main alphanumeric keyboard section, positioned between the left and right Alt keys. In this image of the black keyboard (appears to be a Dell model), the space bar is distinctly visible as the longest horizontal key in the bottom row of the typing area.


Explanation: The image shows the bottom case of a MacBook Pro resting on a wooden table. Rubber feet are typically small circular pads located at the four corners of the bottom case that would be visible as distinct protrusions. Examining all visible corners and edges of the case, there are no distinguishable rubber feet present. The case appears to be sitting relatively flat against the table surface, and the dark color of the aluminum case does not show any contrasting rubber pads at the corner positions where they would normally be located. The detection model also returned a confidence score of <0.1, indicating undetected.

Answer: 2


Explanation: Looking at the laptop keyboard in the image, I can clearly see the arrow keys in the bottom right corner of the keyboard. They are arranged in the typical layout with up/down arrows stacked vertically and left/right arrows positioned horizontally, forming a directional pad. These keys are distinct and clearly visible with the arrow symbols printed on them.

Answer: 0


Explanation: After examining the front of the train locomotive carefully, there is no headlight visible. The front of the blue, white, and red locomotive shows two windows with wipers, the text "ĐỔI MỚI", and the number "D19E-936", but no headlight is present. Additionally, the detection model confirms this with very low confidence (<0.1) for detecting a headlight.

Answer: 2


Answer: 1

Explanation: The touchpad is located in the palm rest area below the keyboard on the MacBook. While the general area where the touchpad sits is visible in the image, modern MacBooks feature seamless trackpads that blend into the chassis with no distinct borders, buttons, or color differences from the surrounding palm rest. The dark color of the laptop and the viewing angle make the trackpad boundaries particularly difficult to distinguish, even though the surface itself is physically present in the frame.


Explanation: Looking at the front of the Amtrak locomotive, the typical location where a driver windshield would be only shows a solid dark blue surface. The window, if present, appears to be so heavily tinted or obscured by the lighting angle that no glass, transparency, window frame, or any distinguishing features of a window can be identified. The front facade appears uniformly opaque.

Answer: 2


Explanation: The motorcycle is photographed from a rear 3/4 angle. The handlebars on this Royal Enfield Continental GT are positioned low as clip-on style handlebars mounted to the front forks. From this rear perspective, they are completely obscured by the fuel tank, instrument cluster, and front assembly. While a right-side mirror is visible, the handlebar itself is hidden behind these components. The chrome tubing visible wrapping around the engine is an engine guard/crash bar, not a handlebar. The detection model shows <0.1 confidence (undetected) for handlebar detection, confirming it is not visible in this frame.

Answer: 2


Explanation: Looking at the image of the black computer mouse, I can identify a scroll wheel in the center of the device. It appears as a slightly raised oval structure positioned between the left and right click buttons. However, because the scroll wheel is black and matches the exact color of the mouse body, and given the even lighting in the photograph, the scroll wheel blends in significantly with the rest of the mouse surface. While it is possible to discern the scroll wheel's presence and shape upon examination, it does not stand out prominently or immediately catch the eye. The monochromatic color scheme makes the scroll wheel difficult to distinguish at first glance, requiring closer inspection to identify clearly.

Answer: 1


Explanation: The image shows only the bottom edge of the smartphone, displaying the headphone jack, microphone hole, Lightning charging port, and speaker grilles. The home button is located on the front face of the phone (below the screen), which is not visible in this side-angle view.

Answer: 2


Explanation: Looking at the image, the white disposable coffee cup lid does not show a clearly identifiable sip hole. While there is a small mark or speck visible on the raised drinking area of the lid, it is ambiguous and cannot be definitively identified as a sip hole. The automated detection of the sip hole returned a confidence score of only 0.015 (well below the 0.1 threshold), indicating the feature was not reliably detected. Any potential sip hole is either too small, obscured, or not present in a way that is visually distinguishable in this image.

Answer: 2


Answer: 2

Explanation: The image shows a standard North American duplex outlet (NEMA 5-15), but examining the receptacle details carefully: while the two vertical slots (neutral and hot) are visible for both sockets, the ground pin holes that should be located at the bottom center of each receptacle cannot be confidently identified. The detection algorithm returned a confidence of only 0.032 (< 0.1 threshold) for the ground pin hole, marking it as 'undetected.' Given the slight upward angle of the photograph, the shadows in the lower portion of the outlet, and the specific perspective, the ground pin holes are positioned where they fall into shadow or are obscured by the viewing angle, making them not visible in this image.


Explanation: The image shows the bottom edge of a smartphone (likely an iPhone 6/6S series), displaying the 3.5mm headphone jack, microphone hole, and Lightning charging port. While those components are clearly visible, the speaker grille—which on this device model consists of a series of small perforated holes located on the bottom-right side of the phone, opposite the headphone jack—is not captured in the frame. The visible small hole near the headphone jack is the microphone, not the speaker, and the main speaker assembly remains out of view to the right of the Lightning port where the device's edge curves away.

Answer: 2


Explanation: Upon examining the electrical outlet faceplate in the image, I looked carefully at the center area between the two sockets and around the edges where screws are typically located on outlet faceplates. The faceplate appears to be a smooth, screwless design with no visible screw heads. The surface between the upper and lower sockets shows no screw hole or fastener. While many electrical outlets use screws to secure the faceplate, this appears to be a modern snap-on style cover or the screw is completely hidden from view. No screw is detectable in this image.

Answer: 2


Explanation: The detection confidence for a screw is extremely low (<0.1), indicating undetected. Visually examining the electrical outlet wall plate, there is no visible screw head in the center area between the two sockets where a screw would typically be located. The plate appears to be a screwless design or the fastener is completely hidden from view in this image.

Answer: 2


Answer: 2

Explanation: An overflow hole is typically a small secondary opening near the rim of a sink basin, designed to prevent water from spilling over if the drain is clogged. Upon examining the image, I can see the main drain in the center of the basin clearly, but there is no overflow hole visible on the visible basin walls or near the rim. The sink appears to be either a model without an overflow feature or the overflow is located on a part of the sink not visible in this image (such as the back wall hidden by the faucet or an area outside the frame).


Answer: 2

Explanation: Upon re-examination with detection assistance, no drain hole was detected in the image (confidence <0.1, undetected). While there is a dark shadowy area in the lower portion of the sink basin, this does not appear to be a visible drain hole - it is likely just shadowing or the corner of the basin. The drain hole is either completely out of frame, hidden by the angle of the photograph, or obscured by lighting conditions to the point where it cannot be visually identified.


Answer: 0

Explanation: The railway track is clearly visible in the image. The train is positioned on the tracks, and you can see the metal rails beneath the train cars as well as the gravel ballast bed. The tracks run along the ground where the train is situated, making them clearly identifiable despite the train partially obscuring them.


Answer: 2

Explanation: While the balance beam has graduated markings with numbers 0-10 used for measurement, this is a weighing scale/beam scale for measuring mass, not a ruler. A ruler is specifically designed for measuring length/distance. The detection system also shows very low confidence (<0.1) for a ruler being present, classifying it as 'undetected.' Therefore, there is no ruler visible in the image.


Answer: 0

Explanation: Looking at the headstock of the guitar in the image, I can clearly see the tuning pegs (machine heads) on both sides of the headstock. They are the silver-colored metal knobs used to adjust string tension for tuning. These are prominently visible and not obscured in any way.


Explanation: The violin in the image clearly displays two f-holes (the characteristic S-shaped sound holes) on the front body of the instrument, one on each side of the strings. These f-holes are distinct, well-defined, and easily observable against the violin's finish.

Answer: 0


Explanation: Looking at the fire extinguisher image, there is a circular red pressure gauge visible near the top. While the gauge face itself with its color-coded zones is present, examining closely at the indicator needle specifically - the thin pointer that would indicate the pressure reading - it cannot be clearly distinguished or confirmed as visible. The gauge face shows colored sections but the actual needle mechanism that points to the pressure level is not discernible in this image. The detection result confirms this assessment with very low confidence for needle detection.

Answer: 2


Explanation: The tuning pegs are the four brown knobs located on the sides of the pegbox at the top of the violin (just below the decorative scroll). In this image, all four pegs (two on the left side and two on the right side of the pegbox) are prominently displayed and can be easily seen. They are clearly distinguishable due to their brown color contrasting with the black fingerboard and the lighter wood of the pegbox.

Answer: 0


Explanation: The violin in the image has four strings that run vertically from the tailpiece/bridge up through the fingerboard. While the detection tool shows low confidence, visually the strings are apparent as thin parallel lines against the dark fingerboard background. However, they are somewhat subtle and blend slightly with the overall appearance, so they are visible but not extremely prominent. Based on careful examination, they are visible and distinguishable.

Answer: 0


Answer: 0

Explanation: The fingerboard is the long, smooth dark strip of wood (typically ebony) glued to the neck of the violin, running underneath the strings. In this image, the fingerboard is clearly visible as the black surface located between the strings and the neck, extending from the nut near the scroll down to where the neck meets the body of the violin. It is distinct and easily identifiable.


Explanation: The objective lenses are the lenses mounted on the revolving nosepiece (the rotating turret) located just above the specimen stage, pointing downward toward the stage. In this microscope image, the rotating nosepiece with multiple objective lenses attached is clearly visible as one of the main optical components. These lenses are mounted on the turret and are positioned just above the black stage where specimens would be placed.

Answer: 0


Answer: 2

Explanation: While examining the microscope image carefully, modern compound microscopes often have built-in electric illumination rather than a reflector/mirror. The object at the lower portion that might appear mirror-like is actually part of the base structure or light source housing. Upon close inspection and considering the very low detection confidence (<0.1), the traditional reflector (mirror) used to direct external light is not visible in this image. This microscope appears to have a fixed light source instead.


Explanation: Looking at the microscope image, I can see the focusing mechanism on the side of the curved arm. There are two adjustment knobs visible - a larger upper knob and a smaller lower knob. The coarse focus knob is typically the larger of the two knobs used for making larger focus adjustments. In this image, the larger upper knob is clearly visible and identifiable as the coarse focus knob. It appears as a prominent circular component on the side of the microscope arm, distinct from the smaller fine focus knob below it.

Answer: 0


Explanation: Upon careful examination of the microscope image, I can see the coarse focus knob (the larger upper knob on the arm) clearly. However, the fine focus knob, which is typically a smaller knob located directly below the coarse focus knob on the same axis, is not clearly visible in this image. If there is a smaller knob present below the coarse focus knob, it is either obscured, positioned at an angle not visible to the viewer, or not distinct enough to be confidently identified. The arm structure in that area does not show a clearly distinguishable fine focus adjustment mechanism.

Answer: 2


Explanation: The image clearly shows a pair of scissors with two black finger holes at the bottom where fingers go to hold and operate the scissors. These oval-shaped holes are fully visible, unobstructed, and stand out clearly against the white background. They are not hidden or difficult to see in any way.

Answer: 0


Explanation: The image shows a standard manual wheelchair with two small caster wheels at the front. At least one front wheel is clearly visible in the lower center portion of the image - it's a small black wheel with a grey tire, positioned on the front frame of the wheelchair. A second front wheel is also partially visible behind it. These front wheels are standard components of a wheelchair and are clearly distinguishable from the larger rear wheels.

Answer: 0


Explanation: The image shows a brown comb (梳子) with clearly visible teeth/tines. A comb's teeth are the long, parallel, thin projections that extend from the spine - these are the defining functional feature of a comb. In this image, approximately 20-22 teeth are prominently displayed as golden/yellow rods clearly extending from the handle. They are not obscured or difficult to see - they are the main feature of the object.

Answer: 0


Answer: 0

Explanation: The image clearly shows a beige ceramic mug with a handle attached to the right side. The handle has a distinct rectangular/C-shape and is fully visible against the white background, with no obstructions. It is well-defined and easy to see.


Explanation: The rim refers to the top edge or lip of the mug. In this image, looking at the mug's opening, the rim is the edge that forms the boundary between the exterior surface and the interior space of the mug. From this perspective, you can see the circular/elliptical edge of the opening where the wall thickness is visible, creating a defined edge around the top. This rim is clearly discernible and forms a visible boundary.

Answer: 0


Answer: 0

Explanation: The temple arms (the parts that extend over the ears) are clearly visible in the image as the black components extending from both sides of the round frames. While a detection tool may not have identified them, they are plainly visible to the human eye.


Explanation: The stage clips are the metal fixtures on the microscope stage that hold slides in place. Looking at this image, while the black stage platform is visible, the specific stage clips are extremely difficult to identify. They blend in with the stage and are not prominent features. Furthermore, an automated detection system analysis indicates a confidence level of less than 0.1 for stage clip detection, categorizing them as 'undetected.' This suggests that the stage clips are essentially not visible in this particular image, either due to angle, lighting, or folds in the mechanism.

Answer: 2


Answer: 2

Explanation: The spectacles are photographed at an angle showing primarily the front and upper surfaces of the frame. Nose pads are typically located on the inner/posterior side of the bridge - the part that makes contact with the wearer's nose. From this viewing angle, the nose pads are obscured by the metal bridge itself and are facing away from the camera, making them not visible in the image.


Answer: 0

Explanation: The image displays a yellow alarm clock with a white dial. Clearly visible on the clock face are three distinct hands: (1) the hour hand (shorter, black, pointing between 7 and 8), (2) the minute hand (longer, black, pointing at 5), and (3) the second hand (thin, red, pointing near 3). These hands are sharply defined against the white background of the clock face with good contrast, making them easy to identify and observe.


Answer: 1

Explanation: The zipper pull (tag) is present on the zipper, located at approximately chest level on the vest. However, it is small and black in color, which causes it to blend in significantly with the black zipper and the black fleece material of the vest. While a careful observer can locate it upon close inspection, it is not prominently visible or easily noticeable at first glance due to the lack of contrast. The detection confidence being very low (<0.1) further confirms that it is difficult to distinguish.


Explanation: The alarm clock face displays Arabic numerals from 1 to 12 representing the hours. These black numbers are prominently shown against the white clock face background. Each hour is clearly marked with large, legible numbers that are easy to read.

Answer: 0


Explanation: Looking at the image, I can identify two power strips. The left power strip has 4 individual outlets, each with its own switch - I can see four sets of three-pin socket holes arranged vertically. The right power strip also has 4 outlets with the same three-pin configuration, also arranged vertically. Counting carefully: left strip has 4 outlets, right strip has 4 outlets, giving a total of 8 outlets.

Answer: 8


Explanation: At the top of the water faucet, there is a prominent cross-shaped handle (十字形把手) used to control the water flow. This handle is metallic/bronze-colored, has four distinct arms, and is positioned clearly against the white background with no obstructions. It is easily distinguishable and immediately identifiable as the valve control mechanism.

Answer: 0


Explanation: Multiple tires are prominently visible on the fire truck. The front wheel tire is clearly seen, the second axle tire is visible, and the rear dual axle shows two tires. All are black rubber tires on silver rims, positioned in clear view without obstruction. They are unmistakable and easy to identify.

Answer: 0


Explanation: Looking at the fire extinguisher, the squeeze lever (also called the operating lever) is clearly visible at the top of the unit. It is the black curved lever that extends from the valve assembly, positioned above the pressure gauge. This is the lever that users would press down to activate and discharge the extinguisher. It is prominently displayed and easy to identify in the image.

Answer: 0


Explanation: The electric kettle in the image has a handle on the right side. Opposite to the handle on the left side of the kettle, there is a metallic pouring spout - a protruding lip designed for water to pour out. This spout is made of stainless steel matching the body of the kettle and is clearly visible against the white background. It is identifiable by its characteristic shape and position on the kettle.

Answer: 0


Explanation: This image shows a mechanical tray balance scale (托盘天平). This type of measuring instrument operates on the lever principle with two pans and does not feature a circular dial. Instead, it uses a center pointer to indicate when the beam is balanced horizontally, and measurements are made by comparing weights or reading a sliding scale on the beam. There is no circular dial (like those found on spring scales or analog watches) visible in this image. The instrument's design is fundamentally different from dial-based measuring devices.

Answer: 2


Answer: 0

Explanation: The detection tool failed to identify the handlebar, but visually the handlebar is clearly present in the image. It is the curved metallic bar at the front/top of the bicycle featuring a light-colored/tan grip on the left end and brake lever mechanisms. The handlebar is prominently displayed as part of the bicycle's steering system.


Answer: 0

Explanation: The electric kettle in the image has a prominent black handle on the right side. This handle is curved, contrasts clearly with the silver stainless steel body of the kettle, and is a major structural component that is immediately noticeable. It is not obscured by any other objects and is well-lit, making it easy to identify.


Explanation: Upon careful examination of the bicycle image, I can identify a pedal attached to the left crank arm. It appears as a black component positioned below the green chain guard. Although there was some initial uncertainty, visually the pedal is discernible in the lower left area of the bicycle frame.

Answer: 0


Answer: 0

Explanation: The bicycle clearly has a saddle (seat) visible as a brown leather-like component mounted on the seat post above the rear wheel. It is prominently positioned and easily identifiable as the seating component of the bicycle.


Answer: 0

Explanation: The image shows a laptop computer with a clearly visible keyboard. The black keys are prominently displayed in the center of the laptop between the screen and the trackpad, arranged in a standard QWERTY layout. The keyboard is distinct and easy to see against the silver body of the laptop.


Explanation: On the black base of the electric kettle, there is a distinct red circular element which is the indicator light. It is located on the front lower portion of the base and stands out clearly due to its red color contrasting against the black plastic. This is a standard feature on electric kettles to indicate when the kettle is powered on or heating.

Answer: 0


Answer: 0

Explanation: The handle is clearly visible at the top of the shopping cart. It features a white horizontal grip with green attachment points on either end, making it prominent and easy to identify in the image.


Explanation: The image shows a green shopping cart with four wheels at the bottom. These wheels are black with silver metal brackets and are positioned at each corner of the cart's base. They stand out clearly against the white background and are easily identifiable as standard shopping cart wheels.

Answer: 0


Explanation: The fan has a control panel located on the neck section just below the fan head. This panel contains multiple control buttons arranged vertically that function as switches for operating the fan. These buttons are visible as distinct rectangular elements on the black control panel with gold/bronze accents. The control interface is clearly observable and not obscured by other parts of the fan or shadows.

Answer: 0


Explanation: The vertical stabilizer is the upright fin located at the rear/tail section of the aircraft that provides directional stability. In this image, the tail assembly is clearly visible on the left side of the aircraft. The vertical stabilizer is the perpendicular (vertical) surface at the back, distinguished by its white color with blue and green accent stripes. It is fully unobstructed against the blue sky background, with a small red navigation light visible on its top and the horizontal stabilizer attached to its lower portion. There is no ambiguity - it is plainly and completely visible.

Answer: 0


Explanation: Upon examining the image of this Cessna aircraft, I can see a prominent red object at the nose of the airplane. This is the propeller assembly - clearly identifiable by its location at the front of the engine cowling, its distinctive red color, and its characteristic shape. The red color contrasts sharply with the blue and white fuselage, making it stand out. Even though the detection system returned low confidence, visual inspection shows the propeller is unambiguously present at the nose of this single-engine aircraft.

Answer: 0


Answer: 2

Explanation: The image shows a purple 30W charging adapter with a braided cable. The only connector visible at the end of the cable is a Lightning connector (Apple's proprietary connector), which is not a USB connector. The other end of the cable connects directly into the adapter block, hiding whether it uses a USB connector internally or is permanently attached. No USB connectors (such as USB-A, USB-C, Micro-USB, or Mini-USB) are visible in the image.


Explanation: Looking at the car interior image, I can clearly see a rear-view mirror mounted at the top center of the windshield. It shows a reflection of the sky with clouds and trees behind the vehicle. The mirror is positioned between the front visors and is easily noticeable.

Answer: 0


Answer: 0

Explanation: The steering wheel is prominently visible in the lower left portion of the image. It is a large, dark-colored steering wheel with a silver/gray center section, positioned in front of the instrument cluster with gauges. It stands out clearly against the dashboard and is one of the main elements in the foreground of the photograph.


Explanation: The aircraft is photographed from the left side. While the front windshield and left side windows are clearly visible, the windows on the right side of the fuselage are completely obscured by the aircraft body. Since the question asks if ALL windows are visible, and the right-side windows cannot be seen from this angle, not all windows are visible.

Answer: 2


Answer: 0

Explanation: There is a prominent black lever with a silver handle visible on the right side of the toaster's front panel. This is the bread-lowering lever that extends vertically from the top to the bottom of the control panel area. It is one of the most noticeable features on the toaster and is clearly visible without any obstruction.


Answer: 0

Explanation: The image shows a two-slice toaster with two rectangular bread slots clearly visible on the top surface. These slots are the openings where bread slices are inserted for toasting, and they are prominently displayed and easily identifiable in the photograph.


Explanation: The Boeing 777 aircraft in the image has two large turbofan engines, one mounted under each wing. Both engines are clearly visible - the left engine is prominently displayed beneath the port wing, and the right engine is visible beneath the starboard wing. They are large cylindrical structures that are a key visual component of the aircraft and are unobstructed and easy to identify.

Answer: 0


Explanation: The vertical stabilizer (the upright tail fin) is clearly visible at the rear of the aircraft. It is the blue vertical surface featuring the United Airlines globe logo. Despite what automated detection might suggest, this is a standard view of a Boeing 777 where the vertical stabilizer is prominently displayed and easily identifiable.

Answer: 0


Explanation: The handlebar is clearly visible in the image as the black horizontal bar at the top of the bicycle with black grips on both ends.

Answer: 0


Explanation: Looking at the image, there is a white electrical plug with three metal prongs clearly visible at the end of the power cord attached to the left power strip. The plug is positioned prominently in the lower left area of the image, is in focus, and easy to identify.

Answer: 0


Explanation: The horizontal stabilizer is the smaller horizontal wing at the tail of the aircraft, perpendicular to the vertical fin. In this image, the left horizontal stabilizer is visible extending from the tail section on the left side of the fuselage. While it is present and can be identified, it is relatively small compared to the main wing and does not stand out prominently. It appears as a thin, flat surface that is visible but requires some attention to distinguish from the rest of the tail structure. It is neither clearly prominent nor completely hidden.

Answer: 1


Explanation: Looking at the green electric bicycle image, I can identify the pedal on the right side crank arm. It is a black pedal with an orange reflector, positioned below the chainring. The pedal is not obscured by other bicycle components and can be clearly distinguished as the platform where the rider's foot would rest.

Answer: 0


Explanation: The horizontal stabilizer is the horizontal tail surface of the aircraft. In this image, the left horizontal stabilizer is clearly visible extending horizontally from the rear fuselage on the left side of the tail. It appears as the smaller wing-like structure (gray/silver in color) perpendicular to the blue vertical stabilizer on the tail section. Since the aircraft is viewed from an angle that shows the left side of the tail, the left horizontal stabilizer is clearly visible in the frame.

Answer: 0


Explanation: Looking at the image, I can see the back of an iPad with a dark Apple logo prominently displayed in the center of the device. The logo contrasts clearly against the silver/white metallic background of the tablet, making it easily distinguishable and clearly visible to the viewer.

Answer: 0


Explanation: The image clearly shows a green electric bicycle with a black bicycle seat (saddle) mounted on the seat post. The seat is prominently visible in the upper portion of the bike, positioned above the rear wheel, and stands out clearly against the white background.

Answer: 0


Explanation: The image shows a white disposable coffee cup lid with a distinctly visible oval-shaped sip hole located near the edge of the lid. Green-colored liquid is clearly visible through this opening, making the sip hole easily identifiable. Additionally, there is a small vent hole near the center of the lid.

Answer: 0


Explanation: The image shows the back of an iPad positioned at an angle against an orange wall. While examining the visible edges of the device, particularly the top edge near the camera, there may be some very small perforations or grille patterns that could potentially be speaker holes. However, these are extremely subtle, not prominently featured, and difficult to distinguish with certainty due to the angle, lighting, and resolution. The photograph primarily focuses on the flat back surface showing the Apple logo, and the edges where speakers would typically be located are either partially obscured or not shown with sufficient clarity to definitively identify speaker holes. The small size of iPad speaker grilles combined with the perspective makes them effectively not visible as a clear, identifiable feature in this image.

Answer: 2


Explanation: The home button is located at the bottom center of the iPhone. It appears as a circular white button with a square icon inside it, positioned below the screen. This is the classic iPhone home button design that was used on the iPhone 5. The button is clearly visible against the white bezel of the phone.

Answer: 0


Explanation: Upon visual inspection of the image, a camera lens is visible as a small black circular component located in the top left corner of the iPad's back panel. It appears as a distinct, dark circular feature against the silver aluminum body of the device, making it clearly identifiable as a camera.

Answer: 0


Explanation: At the bottom left edge of the iPhone, there is a small circular port visible - this is the headphone jack. It is located to the left of the speaker grille holes and the Lightning charging port, appearing as a distinct dark circular opening on the silver/white edge of the device.

Answer: 0


Explanation: Looking at the bottom edge of the iPhone in the image, I can see the Lightning charging port as a small rectangular dark slot positioned in the center between the speaker grilles. While the port is present and technically visible in the image, it is relatively small in the frame and requires looking specifically at the bottom edge to identify it. The fact that automated detection failed to identify it suggests it is not prominently visible. Therefore, it is visible but requires close inspection to notice.

Answer: 1


Explanation: Looking at the top-left corner of the keyboard in the image, there is a key clearly labeled 'Esc'. It is the first key in the top row (function key row) and is easily readable without any obstruction. The text 'Esc' is printed in white on the black keycap, making it clearly visible against the keyboard's dark color.

Answer: 0


Answer: 2

Explanation: Upon careful examination and considering the detection result of <0.1 confidence (undetected), the camera is not clearly identifiable in this image. While there may be a small element in the upper-left corner of the iPad, it is either too indistinct, too small, or at too oblique an angle to be definitively recognizable as a camera lens in the image provided.


Explanation: Looking at the laptop keyboard in the image, the space bar is clearly visible as the long horizontal key located at the bottom center of the keyboard layout, below the letter keys (Z, X, C, V, B, N, M). Its elongated rectangular shape makes it easily distinguishable from the other keys on the keyboard.

Answer: 0


Explanation: Upon reviewing the image more carefully and considering the detection result, I can see there is a large rectangular area below the keyboard where the touchpad is located. While this area is present in the image, it blends seamlessly with the palm rest - there are no distinct physical buttons, clear boundaries, or strong visual demarcations that separate it from the surrounding surface. The touchpad surface appears to be a continuous part of the metal chassis without obvious visual markers. This matches the low detection confidence from the tool. Therefore, while the general location of the touchpad can be identified, specific touchpad features are not clearly distinguishable.

Answer: 1