Objects in the image:
category: suitcase
category: train
category: person
category: backpack
category: handbag

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it on a person?
a: Yes
q: is it the train?
a: No
q: is it behind the train?
a: No
q: is the person carrying it?
a: Yes
q: is it behind the person?
a: No
q: is there yellow on it?
a: No
q: is it blue?
a: No
q: is it a back pack?
a: No
q: is it a bag?
a: Yes
q: is it on the person's back?
a: No
q: does it have a strap?
a: Yes