{
 "s04": "A chart needs a scale. First fix a plot area inside the viewBox (for example x from 70 to 570 and y from 50 to 330 in a 620x400 viewBox), then map every value with arithmetic: x_i = 70 + i * 500 / 6 for day i, and y = 330 - (value - 10) * 280 / 15 for prices between 10 and 25. Write the computed numbers out in your reasoning before writing the SVG. Draw the x and y axes on the edges of the plot area, a grid line and a label (text-anchor=\"end\") for every 5, the day labels under the x axis, the polyline and the dots at the computed points, and the title centred above the plot area.",
 "s05": "A car is not a rectangle: draw the body as one <path> silhouette - a long low hood at the front, a cabin raised in the middle with a sloped windshield, and a short sloping rear. Place the wheels at about 20% and 80% of the body length, with their bottoms exactly on the road line, and draw them after the body so they overlap its lower edge. The windshield and the side window are polygons that follow the slope of the cabin. Put a small yellow headlight at the very front and a red tail light at the very back.",
 "s06": "In SVG the y axis points down, so 'up' means a smaller y. Anchor every part to the one below it: the hull is a trapezoid (wider at the top) whose bottom sits in the water line; the mast is a vertical line from the middle of the hull's top edge up to near the top of the picture; each sail is a vertical triangle with one edge along the mast (one to the left of the mast, one to the right), so the sails stand upright; the flag is a small triangle at the top of the mast. Draw the sky, then the sun, then the boat, then the waves (a filled blue path with a wavy top edge) last so the hull sits in the water.",
 "s07": "Plan the proportions before drawing: the body is a tall brown ellipse; in its upper part two big white eye discs, each about a third of the body's width, almost touching; black pupils about half the eye radius and a small white highlight in each pupil; an orange triangular beak between and just below the eyes. The wings are darker brown ellipses overlapping the left and right sides of the body (not another colour). The branch is a thick brown bar under the body, and the orange feet (three short toes each) are drawn on top of the branch so they grip it.",
 "s08": "Build the rocket around one vertical centre line x = cx so that every part touches the next: the body is a tall white rounded rectangle centred on cx; the red nose cone is a triangle whose base is exactly the top edge of the body and whose tip is on cx; the two red fins are triangles that share an edge with the lower left and right sides of the body; the round blue window is on cx in the upper third of the body; the flame is an orange teardrop with a smaller yellow one inside, starting at the bottom edge of the body. Fill the whole background dark blue first and draw the stars before the rocket.",
 "s09": "Space the lamps evenly inside the housing without overlap: for a housing from y=top to y=top+h, put the lamp centres at top+h/6, top+h/2 and top+5h/6, with radius about h/8. 'Dimmed' means a dark, desaturated colour (for example #5a4a00 for yellow and #0b4a1c for green), not the bright colour. Show the lit red lamp with a bright red and a glow: a larger circle behind it with a radial gradient from semi-transparent red to transparent (or an feGaussianBlur filter)."
}