Objects in the image:
category: person
category: person
category: person
category: person
category: person
category: car
category: person
category: skateboard
category: car
category: person
category: person
category: car
category: person
category: person
category: person
category: car
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a living thing?
a: No
q: is the object ON the living thing?
a: No
q: is it at the back of the picture?
a: Yes
q: is it a building?
a: No
q: is it blue in color?
a: No
q: is it grey in color?
a: Yes
q: is it one of the ramp?
a: No
q: is it one of the rails?
a: No
q: is the object on a building?
a: No
q: does it have wheels?
a: Yes
q: is it in the middle at the back of the picture?
a: Yes
q: is it a car?
a: Yes