Objects in the image:
category: bicycle
category: person
category: bicycle
category: person
category: person
category: person
category: skateboard
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the skateboard?
a: No
q: is he on ground?
a: Yes
q: is he on road?
a: No
q: is he fully visible?
a: Yes
q: is he behind the tree?
a: Yes
q: is he with the blue?
a: Yes