Datasets:

Lumos-Jiateng
/

LMBuild

	{
	"task_id": "bc_fire_engine",
	"set": "core",
	"object": {
	"name": "fire engine",
	"aliases": [
	"fire truck",
	"ladder truck"
	],
	"wikidata": "Q208281",
	"wikidata_url": "https://www.wikidata.org/wiki/Q208281",
	"wordnet": "fire_engine.n.01",
	"family": "D"
	},
	"prompts": {
	"name_only": "Build a fire engine.",
	"attributes": "Build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility.",
	"functional": "Build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility. Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle. Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water. Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access. Add a Warning and Communication subsystem using Emergency lights and Sirens. Ensure Wheels rotate relative to the Chassis. The Turntable ladder must rotate relative to the Chassis. Ladder sections must telescope relative to the Base ladder. The Boom must tilt relative to the Chassis.",
	"sentence_claims": {
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	"sentence": "Build a fire engine.",
	"claims": []
	}
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	"sentence": "Build a fire engine.",
	"claims": []
	},
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	"sentence": "Use a Chassis as the structural base for the cab and firefighting equipment",
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	},
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	"sentence": ". Attach Wheels to enable movement over roads",
	"claims": [
	"P5"
	]
	},
	{
	"sentence": ". Include a Cab to house the driver and crew controls",
	"claims": [
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	},
	{
	"sentence": ". Install a Water tank to store water",
	"claims": [
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	},
	{
	"sentence": "and a Pump to pressurize water or foam",
	"claims": [
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	},
	{
	"sentence": ". Add a Fire hose to convey pressurized water or retardant",
	"claims": [
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	},
	{
	"sentence": ". Mount Ladders for access to elevated locations",
	"claims": []
	},
	{
	"sentence": ". Attach Emergency lights and sirens to warn other road users",
	"claims": []
	},
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	"claims": []
	},
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	"sentence": ". Design it to operate on roads",
	"claims": []
	},
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	"sentence": ". Use high-contrast patterns or retroreflectors to increase visibility",
	"claims": []
	}
	],
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	},
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	"sentence": ". Include a Cab to house the driver and crew controls",
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	},
	{
	"sentence": ". Install a Water tank to store water",
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	},
	{
	"sentence": "and a Pump to pressurize water or foam",
	"claims": [
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	},
	{
	"sentence": ". Add a Fire hose to convey pressurized water or retardant",
	"claims": [
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	},
	{
	"sentence": ". Mount Ladders for access to elevated locations",
	"claims": []
	},
	{
	"sentence": ". Attach Emergency lights and sirens to warn other road users",
	"claims": []
	},
	{
	"sentence": ". The primary purpose is to transport firefighters, water, and equipment to an incident",
	"claims": [
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	},
	{
	"sentence": ". Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers",
	"claims": []
	},
	{
	"sentence": ". Design it to operate on roads",
	"claims": []
	},
	{
	"sentence": ". Use high-contrast patterns or retroreflectors to increase visibility",
	"claims": []
	},
	{
	"sentence": ". Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle",
	"claims": []
	},
	{
	"sentence": ". Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water",
	"claims": []
	},
	{
	"sentence": ". Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access",
	"claims": []
	},
	{
	"sentence": ". Add a Warning and Communication subsystem using Emergency lights and Sirens",
	"claims": []
	},
	{
	"sentence": ". Ensure Wheels rotate relative to the Chassis",
	"claims": [
	"K5"
	]
	},
	{
	"sentence": ". The Turntable ladder must rotate relative to the Chassis",
	"claims": []
	},
	{
	"sentence": ". Ladder sections must telescope relative to the Base ladder",
	"claims": []
	},
	{
	"sentence": ". The Boom must tilt relative to the Chassis",
	"claims": []
	}
	]
	},
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	"image": null,
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	"sentence": "Build a fire engine.",
	"claims": []
	}
	]
	},
	"name_only+image": {
	"text": "According to image W1, build a fire engine.",
	"image": "W1",
	"sentence_claims": [
	{
	"sentence": "According to image W1, build a fire engine.",
	"claims": []
	}
	]
	},
	"attributes": {
	"text": "Build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility.",
	"image": null,
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	"sentence": "Build a fire engine.",
	"claims": []
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	"sentence": ". Attach Wheels to enable movement over roads",
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	"sentence": ". Add a Fire hose to convey pressurized water or retardant",
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	{
	"sentence": ". Mount Ladders for access to elevated locations",
	"claims": []
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	"sentence": ". Attach Emergency lights and sirens to warn other road users",
	"claims": []
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	"sentence": ". Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers",
	"claims": []
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	"sentence": ". Design it to operate on roads",
	"claims": []
	},
	{
	"sentence": ". Use high-contrast patterns or retroreflectors to increase visibility",
	"claims": []
	}
	]
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	"attributes+image": {
	"text": "According to image W1, build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility.",
	"image": "W1",
	"sentence_claims": [
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	"sentence": "According to image W1, build a fire engine.",
	"claims": []
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	"sentence": "Use a Chassis as the structural base for the cab and firefighting equipment",
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	"sentence": ". Attach Wheels to enable movement over roads",
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	"sentence": ". Include a Cab to house the driver and crew controls",
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	"sentence": ". Install a Water tank to store water",
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	"sentence": "and a Pump to pressurize water or foam",
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	"sentence": ". Add a Fire hose to convey pressurized water or retardant",
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	"sentence": ". Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers",
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	"sentence": ". Design it to operate on roads",
	"claims": []
	},
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	"sentence": ". Use high-contrast patterns or retroreflectors to increase visibility",
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	}
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	"text": "Build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility. Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle. Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water. Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access. Add a Warning and Communication subsystem using Emergency lights and Sirens. Ensure Wheels rotate relative to the Chassis. The Turntable ladder must rotate relative to the Chassis. Ladder sections must telescope relative to the Base ladder. The Boom must tilt relative to the Chassis.",
	"image": null,
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	{
	"sentence": "Build a fire engine.",
	"claims": []
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	"sentence": "Use a Chassis as the structural base for the cab and firefighting equipment",
	"claims": [
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	"sentence": ". Attach Wheels to enable movement over roads",
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	"sentence": ". Install a Water tank to store water",
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	"sentence": ". Add a Fire hose to convey pressurized water or retardant",
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	{
	"sentence": ". Mount Ladders for access to elevated locations",
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	"sentence": ". Attach Emergency lights and sirens to warn other road users",
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	{
	"sentence": ". Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers",
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	"sentence": ". Design it to operate on roads",
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	},
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	"sentence": ". Use high-contrast patterns or retroreflectors to increase visibility",
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	},
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	"sentence": ". Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle",
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	},
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	"sentence": ". Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water",
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	},
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	"sentence": ". Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access",
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	"sentence": ". Add a Warning and Communication subsystem using Emergency lights and Sirens",
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	"sentence": ". Ensure Wheels rotate relative to the Chassis",
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	"sentence": ". The Turntable ladder must rotate relative to the Chassis",
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	"sentence": ". Ladder sections must telescope relative to the Base ladder",
	"claims": []
	},
	{
	"sentence": ". The Boom must tilt relative to the Chassis",
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	}
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	"text": "According to image W1, build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility. Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle. Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water. Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access. Add a Warning and Communication subsystem using Emergency lights and Sirens. Ensure Wheels rotate relative to the Chassis. The Turntable ladder must rotate relative to the Chassis. Ladder sections must telescope relative to the Base ladder. The Boom must tilt relative to the Chassis.",
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	"sentence": "According to image W1, build a fire engine.",
	"claims": []
	},
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	"sentence": ". Mount Ladders for access to elevated locations",
	"claims": []
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	"sentence": ". Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers",
	"claims": []
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	"sentence": ". Design it to operate on roads",
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	"sentence": ". Use high-contrast patterns or retroreflectors to increase visibility",
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	},
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	"sentence": ". Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle",
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	"sentence": ". Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water",
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	"sentence": ". The Boom must tilt relative to the Chassis",
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	]
	}
	},
	"check_problems": []
	},
	"images": {
	"in_the_wild": [
	{
	"id": "W1",
	"path": "benchmark/tasks/bc_fire_engine/images/wild_01.png",
	"scene": "parked on a city street outside a fire station, daylight",
	"seed": 101,
	"seconds": 80.6,
	"generator": {
	"model": "Qwen/Qwen-Image-Edit-2511",
	"lora": null,
	"steps": 40,
	"true_cfg_scale": 4.0,
	"prompt": "Turn this 3D render into a realistic photograph of the same LEGO brick model of a fire engine, parked on a city street outside a fire station, daylight. Keep the object's exact shape, proportions, number of parts and how the parts are arranged; do not add, remove or reposition any part of the object. Photorealistic materials and natural lighting, sharp focus, the whole object in view.",
	"negative_prompt": "cartoon, 3d render, cgi, illustration, extra parts, missing parts, deformed, cropped object, text, watermark",
	"input": "benchmark/tasks/bc_fire_engine/reference_renders/bc_fire_engine_az035.png"
	},
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	"Emergency lights and sirens",
	"Ladders"
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	"model": "gemma-4-31b"
	},
	"passed": true
	}
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	],
	"primary": "W1",
	"reference_renders": [
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	"benchmark/tasks/bc_fire_engine/reference_renders/bc_fire_engine_az325.png",
	"benchmark/tasks/bc_fire_engine/reference_renders/bc_fire_engine_az145.png",
	"benchmark/tasks/bc_fire_engine/reference_renders/bc_fire_engine_az215.png"
	]
	},
	"conditions": [
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	"prompt": "name_only",
	"image": null,
	"text": "Build a fire engine."
	},
	{
	"condition_id": "name_only+image",
	"prompt": "name_only",
	"image": "W1",
	"text": "According to image W1, build a fire engine."
	},
	{
	"condition_id": "attributes",
	"prompt": "attributes",
	"image": null,
	"text": "Build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility."
	},
	{
	"condition_id": "attributes+image",
	"prompt": "attributes",
	"image": "W1",
	"text": "According to image W1, build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility."
	},
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	"condition_id": "functional",
	"prompt": "functional",
	"image": null,
	"text": "Build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility. Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle. Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water. Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access. Add a Warning and Communication subsystem using Emergency lights and Sirens. Ensure Wheels rotate relative to the Chassis. The Turntable ladder must rotate relative to the Chassis. Ladder sections must telescope relative to the Base ladder. The Boom must tilt relative to the Chassis."
	},
	{
	"condition_id": "functional+image",
	"prompt": "functional",
	"image": "W1",
	"text": "According to image W1, build a fire engine. Use a Chassis as the structural base for the cab and firefighting equipment. Attach Wheels to enable movement over roads. Include a Cab to house the driver and crew controls. Install a Water tank to store water and a Pump to pressurize water or foam. Add a Fire hose to convey pressurized water or retardant. Mount Ladders for access to elevated locations. Attach Emergency lights and sirens to warn other road users. The primary purpose is to transport firefighters, water, and equipment to an incident. Ensure the Fire hose uses synthetic fabrics like polyester or nylon and elastomers. Design it to operate on roads. Use high-contrast patterns or retroreflectors to increase visibility. Implement a Propulsion and Mobility subsystem using the Chassis and Wheels to move the vehicle. Create a Water Delivery subsystem using the Pump, Water tank, and Fire hose to transport water. Include an Aerial Access subsystem using the Turntable ladder, Boom, and Platform for elevated access. Add a Warning and Communication subsystem using Emergency lights and Sirens. Ensure Wheels rotate relative to the Chassis. The Turntable ladder must rotate relative to the Chassis. Ladder sections must telescope relative to the Base ladder. The Boom must tilt relative to the Chassis."
	}
	],
	"tiers": {
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	"may_create_parts": false
	},
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	"name": "catalog plus creation",
	"subpart_pool": true,
	"may_create_parts": true
	},
	"C": {
	"name": "creation only",
	"subpart_pool": false,
	"may_create_parts": true
	}
	},
	"subpart_pool": {
	"kind": "mixed LDraw bricks",
	"part_count": 152,
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	"reusable": true
	},
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	"name": "plate 1x4",
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	"mesh": "benchmark/assets/ldraw/glb/3710.glb",
	"reusable": true
	},
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	},
	{
	"pool_part_id": "41539",
	"name": "plate 8x8",
	"catalog": "LDraw",
	"size_m": [
	0.0638,
	0.0046,
	0.0638
	],
	"mesh": "benchmark/assets/ldraw/glb/41539.glb",
	"reusable": true
	},
	{
	"pool_part_id": "6143",
	"name": "brick 2x2 round reinforced",
	"catalog": "LDraw",
	"size_m": [
	0.0158,
	0.011,
	0.0158
	],
	"mesh": "benchmark/assets/ldraw/glb/6143.glb",
	"reusable": true
	},
	{
	"pool_part_id": "3070b",
	"name": "tile 1x1 with groove",
	"catalog": "LDraw",
	"size_m": [
	0.0078,
	0.003,
	0.0078
	],
	"mesh": "benchmark/assets/ldraw/glb/3070b.glb",
	"reusable": true
	},
	{
	"pool_part_id": "4081b",
	"name": "plate 1x1 with clip light type 2",
	"catalog": "LDraw",
	"size_m": [
	0.0078,
	0.0062,
	0.015
	],
	"mesh": "benchmark/assets/ldraw/glb/4081b.glb",
	"reusable": true
	},
	{
	"pool_part_id": "11289",
	"name": "windscreen 4x4x4.667 canopy with handle",
	"catalog": "LDraw",
	"size_m": [
	0.0318,
	0.0462,
	0.0382
	],
	"mesh": "benchmark/assets/ldraw/glb/11289.glb",
	"reusable": true
	},
	{
	"pool_part_id": "3795",
	"name": "plate 2x6",
	"catalog": "LDraw",
	"size_m": [
	0.0478,
	0.0046,
	0.0158
	],
	"mesh": "benchmark/assets/ldraw/glb/3795.glb",
	"reusable": true
	},
	{
	"pool_part_id": "87913",
	"name": "ladder holder 2x6",
	"catalog": "LDraw",
	"size_m": [
	0.0478,
	0.005,
	0.0214
	],
	"mesh": "benchmark/assets/ldraw/glb/87913.glb",
	"reusable": true
	}
	],
	"unmeshable_reference_stems": [
	"4079b"
	],
	"full_catalogue": {
	"pool_id": "lego-ldraw-catalog",
	"parts": 14583
	},
	"note": "Bricks of the reference model mixed with bricks from other models of the same type, of other types, and the most common bricks in the corpus. Tiers A and B may also search the full catalogue."
	},
	"required_parts": [
	{
	"id": "P1",
	"part": "chassis",
	"why": "provides the main structural support for all components",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Many fire engines are based on a commercial vehicle chassis that is further upgraded and customized for firefighting requirements."
	},
	{
	"kind": "wikipedia",
	"page": "Vehicle frame",
	"revision": 1333772113,
	"url": "https://en.wikipedia.org/w/index.php?title=Vehicle_frame&oldid=1333772113",
	"quote": "A vehicle frame, also historically known as its chassis, is the main supporting structure of a motor vehicle to which all other components are attached."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states many fire engines are based on a commercial vehicle chassis.",
	"regrounded": false
	}
	},
	{
	"id": "P2",
	"part": "pump",
	"why": "moves water or fire retardant to extinguish fires",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "The standard fire engine... may provide a limited supply of water with which to fight the fire."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Most tankers have an on-board pumping system."
	},
	{
	"kind": "wikipedia",
	"page": "Pump",
	"revision": 1364830689,
	"url": "https://en.wikipedia.org/w/index.php?title=Pump&oldid=1364830689",
	"quote": "A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence mentions on-board pumping systems for tankers and pumps moving fluids.",
	"regrounded": false
	}
	},
	{
	"id": "P3",
	"part": "water tank",
	"why": "stores water for immediate firefighting use",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "The standard fire engine... may provide a limited supply of water with which to fight the fire."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states standard fire engines may provide a limited supply of water.",
	"regrounded": false
	}
	},
	{
	"id": "P4",
	"part": "fire hose",
	"why": "conveys water from the pump to the fire",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Standard tools found on nearly all fire engines include... fire hose."
	},
	{
	"kind": "wikipedia",
	"page": "Fire hose",
	"revision": 1371998966,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_hose&oldid=1371998966",
	"quote": "A fire hose (or firehose) is a high-pressure hose that carries water or other fire retardant (such as foam) to a fire to extinguish it."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states fire hose is found on nearly all fire engines.",
	"regrounded": false
	}
	},
	{
	"id": "P5",
	"part": "wheels",
	"why": "enable the vehicle to move over roads",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Wheel",
	"revision": 1372796054,
	"url": "https://en.wikipedia.org/w/index.php?title=Wheel&oldid=1372796054",
	"quote": "Wheels, in conjunction with axles, allow heavy objects to be moved easily, facilitating transportation, supporting loads, and performing work in machines."
	},
	{
	"kind": "wikidata",
	"item": "Q15618781",
	"item_label": "wheeled vehicle",
	"property": "P527",
	"property_label": "has part",
	"value": "Q446",
	"value_label": "wheel",
	"statement": "Q15618781$a9522256-4789-8d34-779a-037c8981cf5a",
	"url": "https://www.wikidata.org/wiki/Q15618781#P527"
	}
	],
	"support": "both",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Fire engine is a wheeled vehicle, and wheeled vehicles have wheels.",
	"regrounded": false
	}
	},
	{
	"id": "P6",
	"part": "cab",
	"why": "houses the driver and passengers",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "The primary purposes of a fire engine include transporting firefighters and water to an incident."
	},
	{
	"kind": "wikipedia",
	"page": "Cab",
	"revision": 1356353803,
	"url": "https://en.wikipedia.org/w/index.php?title=Cab&oldid=1356353803",
	"quote": "Cabin (truck), an enclosed space in a truck where the driver is seated"
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Fire engines transport firefighters; trucks have cabs for drivers.",
	"regrounded": false
	}
	},
	{
	"id": "P7",
	"part": "emergency lights",
	"why": "warns other drivers of the vehicle's approach",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "They are generally considered emergency vehicles authorized to be equipped with emergency lights and sirens."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Active visual warnings which are usually in the form of flashing colored lights (also known as \"beacons\" or \"lightbars\")."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states they are authorized for and usually have emergency lights.",
	"regrounded": false
	}
	},
	{
	"id": "P8",
	"part": "siren",
	"why": "provides audible warning to clear the path",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "While the fire truck is headed towards the scene, the lights are always accompanied by warning sound alarms such as sirens and air horns."
	},
	{
	"kind": "wikipedia",
	"page": "Vehicle horn",
	"revision": 1361700869,
	"url": "https://en.wikipedia.org/w/index.php?title=Vehicle_horn&oldid=1361700869",
	"quote": "A horn is a sound-making device installed on motor vehicles... The driver uses the horn to warn others of the vehicle's presence or approach."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states lights are always accompanied by warning sound alarms such as sirens.",
	"regrounded": false
	}
	},
	{
	"id": "P9",
	"part": "ladder",
	"why": "provides access to elevated locations for rescue or ventilation",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Standard tools found on nearly all fire engines include ladders."
	},
	{
	"kind": "wikipedia",
	"page": "Ladder",
	"revision": 1372260707,
	"url": "https://en.wikipedia.org/w/index.php?title=Ladder&oldid=1372260707",
	"quote": "A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states ladders are found on nearly all fire engines.",
	"regrounded": false
	}
	},
	{
	"id": "P10",
	"part": "steering system",
	"why": "controls the direction of the vehicle",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Steering",
	"revision": 1374314453,
	"url": "https://en.wikipedia.org/w/index.php?title=Steering&oldid=1374314453",
	"quote": "Steering is the control of the direction of motion or the components that enable its control."
	},
	{
	"kind": "wikidata",
	"item": "Q42889",
	"item_label": "vehicle",
	"property": "P527",
	"property_label": "has part",
	"value": "Q18891017",
	"value_label": "steering system",
	"statement": "Q42889$04590fba-4df4-4325-110c-8cdaae9b4d96",
	"url": "https://www.wikidata.org/wiki/Q42889#P527"
	}
	],
	"support": "both",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Fire engine is a vehicle, and vehicles have steering systems.",
	"regrounded": false
	}
	},
	{
	"id": "P11",
	"part": "propulsion system",
	"why": "generates the force to move the vehicle",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Propulsion",
	"revision": 1362484300,
	"url": "https://en.wikipedia.org/w/index.php?title=Propulsion&oldid=1362484300",
	"quote": "A propulsion system is a machine system consisting of at least two core elements: the powerplant, a source of mechanical power; and the propulsor."
	},
	{
	"kind": "wikidata",
	"item": "Q42889",
	"item_label": "vehicle",
	"property": "P527",
	"property_label": "has part",
	"value": "Q2583685",
	"value_label": "propulsion",
	"statement": "Q42889$81820be0-4c51-b412-25dc-e7be91cfeda6",
	"url": "https://www.wikidata.org/wiki/Q42889#P527"
	}
	],
	"support": "both",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Fire engine is a vehicle, and vehicles have propulsion.",
	"regrounded": false
	}
	},
	{
	"id": "P12",
	"part": "doors",
	"why": "allows ingress and egress for firefighters",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Door",
	"revision": 1371307890,
	"url": "https://en.wikipedia.org/w/index.php?title=Door&oldid=1371307890",
	"quote": "A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure."
	},
	{
	"kind": "wikidata",
	"item": "Q42889",
	"item_label": "vehicle",
	"property": "P527",
	"property_label": "has part",
	"value": "Q36794",
	"value_label": "door",
	"statement": "Q42889$1b3cc0eb-6573-4cc6-91ad-85086e7ad4bf",
	"url": "https://www.wikidata.org/wiki/Q42889#P527"
	}
	],
	"support": "both",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Fire engine is a vehicle, and vehicles have doors.",
	"regrounded": false
	}
	},
	{
	"id": "P13",
	"part": "seats",
	"why": "provides seating for the crew during transport",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Seat",
	"revision": 1370860202,
	"url": "https://en.wikipedia.org/w/index.php?title=Seat&oldid=1370860202",
	"quote": "A seat is an object where an individual sits."
	},
	{
	"kind": "wikidata",
	"item": "Q42889",
	"item_label": "vehicle",
	"property": "P527",
	"property_label": "has part",
	"value": "Q2207370",
	"value_label": "seat",
	"statement": "Q42889$3fb74e37-4f84-c274-8b21-70860e4f59b0",
	"url": "https://www.wikidata.org/wiki/Q42889#P527"
	}
	],
	"support": "both",
	"verification": {
	"depth": "computed",
	"check": "a part declared with this role exists and is connected to the assembly",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Fire engine is a vehicle, and vehicles have seats.",
	"regrounded": false
	}
	}
	],
	"required_attributes": [
	{
	"id": "A1",
	"kind": "use",
	"statement": "The primary purpose is to transport firefighters and water to an incident and carry firefighting equipment.",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "The primary purposes of a fire engine include transporting firefighters and water to an incident as well as carrying equipment for firefighting operations."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "adjudicated",
	"check": "judged against the design's declared parts, materials and renders",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Directly stated as the primary purposes of a fire engine.",
	"regrounded": false
	}
	},
	{
	"id": "A2",
	"kind": "material",
	"statement": "Modern fire hoses use synthetic fabrics and elastomers to resist chemicals and sunlight.",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire hose",
	"revision": 1371998966,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_hose&oldid=1371998966",
	"quote": "Modern fire hoses use a variety of natural and synthetic fabrics and elastomers in their construction."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "adjudicated",
	"check": "material declared per part, checked against the claim and the renders",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Directly stated for modern fire hoses.",
	"regrounded": false
	}
	},
	{
	"id": "A3",
	"kind": "property",
	"statement": "Fire engines are often painted in high-contrast colors like red or lime yellow for visibility.",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Some fire engines in the United States are lime yellow rather than red due to safety and ergonomics reasons."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Passive visual warnings involve the use of high contrast patterns to increase the noticeability of the vehicle."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "adjudicated",
	"check": "judged against the design's declared parts, materials and renders",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence mentions red, lime yellow, and high contrast patterns for visibility.",
	"regrounded": false
	}
	},
	{
	"id": "A4",
	"kind": "operating_environment",
	"statement": "Fire engines operate on roads and, in the case of wildland engines, on rough terrain.",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "A wildland fire engine is a specialized fire engine that can negotiate difficult terrain for wildfire suppression."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "They are generally considered emergency vehicles authorized to be equipped with emergency lights and sirens."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "adjudicated",
	"check": "judged against the design's declared parts, materials and renders",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence mentions emergency vehicles and specialized wildland engines for difficult terrain.",
	"regrounded": false
	}
	},
	{
	"id": "A5",
	"kind": "user_interaction",
	"statement": "Firefighters operate the pump, hoses, and aerial devices manually or via hydraulic controls.",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Fire engines may have a deluge gun, also called master streams, which directs a heavy stream of water to wherever the operator points it."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Modern telescopic ladders may be hydraulic or pneumatic."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "adjudicated",
	"check": "judged against the design's declared parts, materials and renders",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence mentions operators pointing deluge guns and hydraulic telescopic ladders.",
	"regrounded": false
	}
	}
	],
	"functional_subsystems": [
	{
	"id": "F1",
	"subsystem": "Water delivery system",
	"parts": [
	"pump",
	"water tank",
	"fire hose",
	"suction hose",
	"nozzle"
	],
	"function": "Draws water from a source or tank and delivers it under pressure to the fire.",
	"connections": [
	{
	"from": "pump",
	"to": "fire hose",
	"carries": "fluid"
	},
	{
	"from": "suction hose",
	"to": "pump",
	"carries": "fluid"
	}
	],
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "The standard fire engine... may provide a limited supply of water with which to fight the fire."
	},
	{
	"kind": "wikipedia",
	"page": "Fire hose",
	"revision": 1371998966,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_hose&oldid=1371998966",
	"quote": "Suction hose is laid down on the suction side of pump (inlet)... Delivery hose is laid down from the delivery side of the pump (outlet)."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "presence, placement and connection of the named parts on the part graph; internal working is declared",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence describes pumps, suction hoses, and delivery hoses moving water to fight fire.",
	"regrounded": false,
	"removed_details": [
	"In a fire engine, the water tank connects to the pump and passes fluid."
	],
	"detail_support": {
	"connections[0]": false,
	"connections[1]": true,
	"connections[2]": true
	}
	}
	},
	{
	"id": "F2",
	"subsystem": "Aerial apparatus",
	"parts": [
	"ladder",
	"turntable",
	"boom",
	"platform",
	"outriggers"
	],
	"function": "Provides elevated access for rescue, ventilation, or water application.",
	"connections": [
	{
	"from": "turntable",
	"to": "ladder",
	"carries": "motion"
	}
	],
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "An aerial apparatus is a fire truck mounted with an extendable boom that enables firefighters to reach high locations."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "A turntable ladder (TL) is an aerial apparatus with a large ladder mounted on a pivot which resembles a turntable."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "presence, placement and connection of the named parts on the part graph; internal working is declared",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Aerial apparatus with boom/ladder enables reaching high locations.",
	"regrounded": false,
	"removed_details": [
	"In a fire engine, the outriggers connects to the chassis and passes load."
	],
	"detail_support": {
	"connections[0]": true,
	"connections[1]": false
	}
	}
	},
	{
	"id": "F3",
	"subsystem": "Propulsion and steering",
	"parts": [
	"engine",
	"transmission",
	"wheels",
	"steering system"
	],
	"function": "Moves the vehicle to the incident scene and controls its direction.",
	"connections": [
	{
	"from": "steering system",
	"to": "wheels",
	"carries": "motion"
	}
	],
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Wheel",
	"revision": 1372796054,
	"url": "https://en.wikipedia.org/w/index.php?title=Wheel&oldid=1372796054",
	"quote": "Wheels, in conjunction with axles, allow heavy objects to be moved easily."
	},
	{
	"kind": "wikipedia",
	"page": "Steering",
	"revision": 1374314453,
	"url": "https://en.wikipedia.org/w/index.php?title=Steering&oldid=1374314453",
	"quote": "Steering is the control of the direction of motion."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "presence, placement and connection of the named parts on the part graph; internal working is declared",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Wheels move objects and steering controls direction of motion.",
	"regrounded": false,
	"removed_details": [
	"In a fire engine, the engine connects to the wheels and passes power."
	],
	"detail_support": {
	"connections[0]": false,
	"connections[1]": true
	}
	}
	},
	{
	"id": "F4",
	"subsystem": "Warning system",
	"parts": [
	"emergency lights",
	"siren",
	"air horn"
	],
	"function": "Alerts other road users to the vehicle's presence and emergency status.",
	"connections": [],
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Active visual warnings which are usually in the form of flashing colored lights... These flash to attract the attention of other drivers."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "While the fire truck is headed towards the scene, the lights are always accompanied by warning sound alarms such as sirens and air horns."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "presence, placement and connection of the named parts on the part graph; internal working is declared",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Lights and sirens attract attention of other drivers/road users.",
	"regrounded": false,
	"removed_details": [
	"In a fire engine, the emergency lights connects to the driver and passes signal.",
	"In a fire engine, the siren connects to the driver and passes signal."
	],
	"detail_support": {
	"connections[0]": false,
	"connections[1]": false
	}
	}
	}
	],
	"required_kinematics": [
	{
	"id": "K1",
	"moving_part": "ladder",
	"relative_to": "turntable",
	"motion": "telescopes",
	"joint_type": "prismatic",
	"axis": null,
	"range": "up to 68 meters for some models",
	"actuation": "hydraulic",
	"coupled_with": null,
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "To increase its length and reach, the ladder is often telescoping. Modern telescopic ladders may be hydraulic or pneumatic."
	},
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "The highest TL in the world is the Magirus M68L, with a range of 68 meters (223.1 ft)."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Evidence states the ladder is often telescoping.",
	"regrounded": false,
	"declared_details": [
	"relative_to: turntable"
	],
	"removed_details": [
	"axis: longitudinal axis of the ladder",
	"coupled_with: rotation of turntable"
	],
	"detail_support": {
	"relative_to": false,
	"axis": false,
	"range": true,
	"actuation": true,
	"coupled_with": false
	}
	}
	},
	{
	"id": "K2",
	"moving_part": "ladder",
	"relative_to": "chassis",
	"motion": "rotates",
	"joint_type": "revolute",
	"axis": null,
	"range": null,
	"actuation": null,
	"coupled_with": null,
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "A turntable ladder (TL) is an aerial apparatus with a large ladder mounted on a pivot which resembles a turntable."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Ladder is mounted on a pivot resembling a turntable.",
	"regrounded": false,
	"removed_details": [
	"axis: vertical axis of the turntable",
	"range: 360 degrees",
	"actuation: hydraulic",
	"coupled_with: telescoping motion"
	],
	"detail_support": {
	"relative_to": true,
	"axis": false,
	"range": false,
	"actuation": false,
	"coupled_with": false
	}
	}
	},
	{
	"id": "K4",
	"moving_part": "outriggers",
	"relative_to": "chassis",
	"motion": "slides",
	"joint_type": "prismatic",
	"axis": null,
	"range": null,
	"actuation": null,
	"coupled_with": "stabilization of aerial apparatus",
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Outrigger",
	"revision": 1351340177,
	"url": "https://en.wikipedia.org/w/index.php?title=Outrigger&oldid=1351340177",
	"quote": "Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Folding out legs for stabilization entails motion (sliding or swinging).",
	"regrounded": false,
	"declared_details": [
	"relative_to: chassis"
	],
	"removed_details": [
	"axis: horizontal axis perpendicular to vehicle centerline",
	"range: until ground contact",
	"actuation: hydraulic"
	],
	"detail_support": {
	"relative_to": false,
	"axis": false,
	"range": false,
	"actuation": false,
	"coupled_with": true
	}
	}
	},
	{
	"id": "K5",
	"moving_part": "wheels",
	"relative_to": "axle",
	"motion": "rotates",
	"joint_type": "revolute",
	"axis": "axle axis",
	"range": null,
	"actuation": null,
	"coupled_with": null,
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Wheel",
	"revision": 1372796054,
	"url": "https://en.wikipedia.org/w/index.php?title=Wheel&oldid=1372796054",
	"quote": "A wheel is a rotating component (typically circular in shape) intended to turn on an axle bearing."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Wheels are defined as rotating components.",
	"regrounded": false,
	"removed_details": [
	"range: continuous",
	"actuation: engine",
	"coupled_with: vehicle translation"
	],
	"detail_support": {
	"relative_to": true,
	"axis": true,
	"range": false,
	"actuation": false,
	"coupled_with": false
	}
	}
	},
	{
	"id": "K6",
	"moving_part": "steering wheels",
	"relative_to": "driver",
	"motion": "rotates",
	"joint_type": "revolute",
	"axis": null,
	"range": null,
	"actuation": null,
	"coupled_with": "front wheel steering",
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "It has two drivers, with separate steering wheels for front and rear wheels."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Steering wheels are used by drivers, implying rotation.",
	"regrounded": false,
	"declared_details": [
	"relative_to: driver"
	],
	"removed_details": [
	"axis: vertical axis",
	"range: variable",
	"actuation: manual"
	],
	"detail_support": {
	"relative_to": false,
	"axis": false,
	"range": false,
	"actuation": false,
	"coupled_with": true
	}
	}
	},
	{
	"id": "K7",
	"moving_part": "doors",
	"relative_to": "cab",
	"motion": "swings",
	"joint_type": "revolute",
	"axis": "vertical hinge axis",
	"range": null,
	"actuation": null,
	"coupled_with": null,
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Door",
	"revision": 1371307890,
	"url": "https://en.wikipedia.org/w/index.php?title=Door&oldid=1371307890",
	"quote": "Doors are generally made of a material suited to the door's task. They are commonly attached by hinges."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Doors are commonly attached by hinges, which supports swinging.",
	"regrounded": false,
	"declared_details": [
	"relative_to: cab"
	],
	"removed_details": [
	"range: 90 to 180 degrees",
	"actuation: manual",
	"coupled_with: ingress/egress"
	],
	"detail_support": {
	"relative_to": false,
	"axis": true,
	"range": false,
	"actuation": false,
	"coupled_with": false
	}
	}
	},
	{
	"id": "K8",
	"moving_part": "hose",
	"relative_to": "reel",
	"motion": "unwinds",
	"joint_type": "continuous",
	"axis": "spindle axis",
	"range": null,
	"actuation": null,
	"coupled_with": "deployment",
	"scope": "general",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Hose reel",
	"revision": 1344506023,
	"url": "https://en.wikipedia.org/w/index.php?title=Hose_reel&oldid=1344506023",
	"quote": "A hose reel is a cylindrical spindle... used for storing a hose."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": true,
	"reason": "Storing a hose on a reel entails unwinding it for use.",
	"regrounded": false,
	"removed_details": [
	"range: full length of hose",
	"actuation: manual"
	],
	"detail_support": {
	"relative_to": true,
	"axis": true,
	"range": false,
	"actuation": false,
	"coupled_with": true
	}
	}
	}
	],
	"optional_kinematics": [
	{
	"id": "K3",
	"moving_part": "boom",
	"relative_to": "chassis",
	"motion": "articulates",
	"joint_type": "revolute",
	"axis": "horizontal axis at joints",
	"range": null,
	"actuation": null,
	"coupled_with": null,
	"scope": "variant",
	"sources": [
	{
	"kind": "wikipedia",
	"page": "Fire engine",
	"revision": 1374527608,
	"url": "https://en.wikipedia.org/w/index.php?title=Fire_engine&oldid=1374527608",
	"quote": "Some booms are capable of articulating, allowing the arm to bend in one or more places."
	}
	],
	"support": "text-quoted",
	"verification": {
	"depth": "computed",
	"check": "joint matching on moving part, type and axis, then a collision-checked sweep",
	"model": "gemma-4-31b",
	"supported": true,
	"general": false,
	"reason": "Evidence says 'Some booms' are capable of articulating.",
	"regrounded": false,
	"declared_details": [
	"relative_to: chassis"
	],
	"removed_details": [
	"range: variable depending on design",
	"actuation: hydraulic",
	"coupled_with: extension of boom"
	],
	"detail_support": {
	"relative_to": false,
	"axis": true,
	"range": false,
	"actuation": false,
	"coupled_with": false
	}
	}
	}
	],
	"reference": {
	"object_id": "brickcomposer-437337",
	"dataset": "BrickComposer collection (BrickLink Studio models)",
	"record": "437337_Fire_Truck.io",
	"license": "per-model terms of the original Studio model; not established here",
	"part_count": 174,
	"cad_files": [
	{
	"role": "complete assembly",
	"format": "LDR",
	"path": "benchmark/tasks/bc_fire_engine/reference/brickcomposer-437337.ldr"
	}
	],
	"reference_glb": null,
	"alternates": [],
	"realizes": {
	"method": "lexical overlap between claim part names and reference part roles; LEGO joints are not annotated",
	"parts": {
	"P1": [],
	"P2": [],
	"P3": [],
	"P4": [
	"hose reel 2x4x2 drum",
	"hose reel 2x4x2 holder with solid studs",
	"minifig tool hose nozzle with handle"
	],
	"P5": [
	"car steering stand and wheel complete",
	"wheel rim 14x18 with holes on both sides needs work"
	],
	"P6": [],
	"P7": [],
	"P8": [],
	"P9": [],
	"P10": [
	"car steering stand and wheel complete"
	],
	"P11": [],
	"P12": [
	"container cupboard 2x3x2 door",
	"door 1x3x1 left",
	"door 1x3x1 right"
	],
	"P13": []
	},
	"kinematics": {
	"K1": [],
	"K2": [],
	"K4": [],
	"K5": [],
	"K6": [],
	"K7": [],
	"K8": []
	},
	"realized_claims": [
	"P10",
	"P12",
	"P4",
	"P5"
	],
	"unrealized_claims": [
	"K1",
	"K2",
	"K4",
	"K5",
	"K6",
	"K7",
	"K8",
	"P1",
	"P11",
	"P13",
	"P2",
	"P3",
	"P6",
	"P7",
	"P8",
	"P9"
	]
	},
	"articulation": {
	"frame": "LDraw, LDU",
	"node_count": 174,
	"origin_scale": 1.0,
	"root_node": null,
	"joints": [
	{
	"id": "L1",
	"label": "container cupboard",
	"type": "revolute",
	"motion": "rotate",
	"axis": [
	-0.0,
	-1.0,
	0.0
	],
	"origin": [
	157.0,
	-106.0,
	-41.0
	],
	"range": [
	-1.570796,
	0.0
	],
	"range_note": "range from a collision sweep of the bricks",
	"exaggerated": false,
	"child_nodes": [
	155
	],
	"moves_nodes": [
	155
	],
	"claims": [],
	"depth": 0,
	"connections": [
	"hinge 23/23"
	],
	"parent_label": "groove, bracket",
	"joint_source": "derived from connectors"
	},
	{
	"id": "L2",
	"label": "container cupboard",
	"type": "revolute",
	"motion": "rotate",
	"axis": [
	-0.0,
	1.0,
	0.0
	],
	"origin": [
	157.0,
	-106.0,
	73.0
	],
	"range": [
	-1.570796,
	0.0
	],
	"range_note": "range from a collision sweep of the bricks",
	"exaggerated": false,
	"child_nodes": [
	161
	],
	"moves_nodes": [
	161
	],
	"claims": [],
	"depth": 0,
	"connections": [
	"hinge 23/23"
	],
	"parent_label": "groove, bracket",
	"joint_source": "derived from connectors"
	},
	{
	"id": "L3",
	"label": "container cupboard",
	"type": "revolute",
	"motion": "rotate",
	"axis": [
	0.0,
	1.0,
	0.0
	],
	"origin": [
	265.0,
	-106.0,
	-41.0
	],
	"range": [
	-1.570796,
	0.0
	],
	"range_note": "range from a collision sweep of the bricks",
	"exaggerated": false,
	"child_nodes": [
	157
	],
	"moves_nodes": [
	157
	],
	"claims": [],
	"depth": 0,
	"connections": [
	"hinge 23/23"
	],
	"parent_label": "groove, bracket",
	"joint_source": "derived from connectors"
	},
	{
	"id": "L4",
	"label": "container cupboard",
	"type": "revolute",
	"motion": "rotate",
	"axis": [
	0.0,
	-1.0,
	0.0
	],
	"origin": [
	265.0,
	-106.0,
	73.0
	],
	"range": [
	-1.570796,
	0.0
	],
	"range_note": "range from a collision sweep of the bricks",
	"exaggerated": false,
	"child_nodes": [
	159
	],
	"moves_nodes": [
	159
	],
	"claims": [],
	"depth": 0,
	"connections": [
	"hinge 23/23"
	],
	"parent_label": "groove, bracket",
	"joint_source": "derived from connectors"
	},
	{
	"id": "L5",
	"label": "wheel rim, tyre shallow",
	"type": "continuous",
	"motion": "rotate",
	"axis": [
	0.0,
	0.0,
	1.0
	],
	"origin": [
	-69.0,
	-6.0,
	76.0
	],
	"range": [
	0.0,
	6.283185
	],
	"range_note": "turns freely",
	"exaggerated": false,
	"child_nodes": [
	172,
	173
	],
	"moves_nodes": [
	172,
	173
	],
	"claims": [
	"K5",
	"K6"
	],
	"depth": 0,
	"connections": [
	"axle socket/pin"
	],
	"parent_label": "groove, bracket",
	"joint_source": "derived from connectors"
	},
	{
	"id": "L6",
	"label": "wheel rim, tyre shallow",
	"type": "continuous",
	"motion": "rotate",
	"axis": [
	0.0,
	0.0,
	-1.0
	],
	"origin": [
	-69.0,
	-6.0,
	-44.0
	],
	"range": [
	0.0,
	6.283185
	],
	"range_note": "turns freely",
	"exaggerated": false,
	"child_nodes": [
	168,
	169
	],
	"moves_nodes": [
	168,
	169
	],
	"claims": [
	"K5",
	"K6"
	],
	"depth": 0,
	"connections": [
	"axle socket/pin"
	],
	"parent_label": "groove, bracket",
	"joint_source": "derived from connectors"
	},
	{
	"id": "L7",
	"label": "wheel rim, tyre shallow",
	"type": "continuous",
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