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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it something that people carry?
a: Yes
q: the black suitcase to the left?
a: No
q: the black suitcase the man in the middle carries?
a: Yes