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

Guessing-game dialogue about one of the objects:
q: is it a plane?
a: Yes
q: is it the first one?
a: N/A
q: is it the one leading the formation?
a: No
q: is it one of the 2 behind the lead plane?
a: No
q: is it one of the 3 behind those 2?
a: Yes
q: is it  the middle one?
a: Yes