Objects in the image:
category: traffic light
category: traffic light
category: bus
category: car
category: traffic light
category: bus
category: traffic light

Guessing-game dialogue about one of the objects:
q: does it have wheels?
a: No
q: is it hanging?
a: Yes
q: does it need power to function?
a: Yes
q: Does it have more than 3 functions?
a: No