Objects in the image:
category: bench
category: train
category: backpack
category: skis
category: backpack
category: person
category: person

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a train?
a: No
q: Is it a track?
a: No
q: Is it a chair?
a: No
q: Is it a tree?
a: No
q: Is it a shed?
a: No
q: Is it a sign?
a: No
q: Is it a wall?
a: No
q: Is it a pole?
a: No
q: Is it something a person is wearing?
a: Yes
q: Is it clothing?
a: No
q: Is it a backpack?
a: Yes
q: Is it the backpack on the back of the man with the green bag?
a: No
q: Is it the backpack on the man in the blue jacket?
a: Yes
q: Is he wearing only one backpack?
a: Yes