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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: in the front?
a: No
q: in the left?
a: Yes
q: wearing red?
a: No
q: wearing black?
a: Yes
q: standing with the red one?
a: No
q: near the van?
a: Yes
q: standing alone?
a: No