Objects in the image:
category: backpack
category: person
category: person
category: backpack
category: car
category: bench
category: book
category: suitcase
category: person
category: backpack
category: suitcase
category: person
category: suitcase

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: are they holding or wearing it?
a: Yes
q: is it luggage?
a: No
q: is it a backpack?
a: Yes
q: left kid?
a: No
q: middle kid blue back?
a: Yes