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

Guessing-game dialogue about one of the objects:
q: is it a bus?
a: No
q: is it a person?
a: Yes
q: are they in a bus?
a: Yes
q: are they in the front bus.?
a: Yes
q: are they on the top level?
a: Yes
q: is it the man with white hair?
a: Yes
q: is it the man near the front of bus?
a: Yes