Objects in the image:
category: person
category: person
category: truck
category: car
category: person
category: bus
category: person
category: person
category: fire hydrant
category: backpack
category: person
category: truck
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: touching the pickup truck?
a: No
q: holding the glass?
a: Yes