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

Guessing-game dialogue about one of the objects:
q: Is it alive?
a: No
q: Is it a rock?
a: No
q: Is it a tree?
a: No
q: Is it on a living thing?
a: Yes
q: Is it on a human?
a: Yes
q: Is it on the guy in blue?
a: Yes
q: Is it the backpack?
a: Yes