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

Guessing-game dialogue about one of the objects:
q: Is it an aircraft?
a: No
q: is it in the background?
a: No
q: is it part of an aircraft?
a: No
q: is it blue?
a: No
q: is it close to the aircraft?
a: Yes
q: is it in front of the aircraft?
a: Yes
q: is it a vehicle?
a: Yes
q: is it tugging the aircraft?
a: No
q: is it guiding the aircraft?
a: N/A
q: is it close to the front wheel of the aircraft?
a: Yes