Objects in the image:
category: backpack
category: giraffe
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he white?
a: N/A
q: does he have a blue shirt on?
a: No
q: does he have a green shirt on?
a: No
q: does he have a red shirt on?
a: No
q: is he behind the person in the red shirt?
a: Yes