Objects in the image:
category: car
category: car
category: skateboard
category: fire hydrant
category: car
category: truck
category: truck
category: car
category: person
category: truck

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it in left?
a: Yes
q: is it car?
a: No
q: is it yellow truck?
a: No
q: is it in front?
a: Yes
q: is it in black?
a: Yes
q: i like oxygen cylinder near to the tree?
a: Yes