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

Guessing-game dialogue about one of the objects:
q: is it in front?
a: No
q: is it person?
a: No
q: is it in left?
a: Yes
q: is red bus?
a: No
q: is yellow bus in back?
a: Yes