Objects in the image:
category: backpack
category: person
category: person
category: person
category: person
category: skateboard
category: bottle
category: handbag
category: person
category: backpack
category: bottle

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: on the skate?
a: No
q: on the right in black walking?
a: No
q: behind the guy sitting?
a: Yes