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

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: No
q: is it person?
a: Yes
q: is the person standing near grey color stand?
a: No
q: is the person wear yellow?
a: Yes