Objects in the image:
category: person
category: bus
category: person
category: person
category: train
category: person
category: person
category: person
category: person
category: suitcase
category: person
category: person
category: suitcase
category: bus

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a bus?
a: Yes
q: is a person near it?
a: No