Objects in the image:
category: truck
category: truck
category: truck
category: truck
category: truck

Guessing-game dialogue about one of the objects:
q: is it a fire engine?
a: Yes
q: is it the whole thing?
a: No
q: is it a part of a fire engine?
a: Yes
q: is it on the first one?
a: No
q: is it on the second one?
a: No
q: is it on the third one?
a: Yes
q: is it a tire?
a: Yes
q: is it the front one? (that you can see)?
a: Yes