Objects in the image:
category: bicycle
category: person
category: truck
category: traffic light
category: person
category: bicycle
category: backpack
category: person

Guessing-game dialogue about one of the objects:
q: Is it black?
a: No
q: Is it a person?
a: Yes
q: Is he on a bike?
a: No
q: Is he wearing a hat and wearing black?
a: No
q: Does he stand next to the guy with the hat?
a: Yes