Objects in the image:
category: person
category: person
category: skateboard
category: skateboard
category: person
category: person
category: person
category: person
category: person
category: backpack
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: in the foreground?
a: No
q: wearing a black hat?
a: Yes
q: standing on the stairs without a board?
a: No
q: Is the person carrying a red backpack?
a: Yes