Objects in the image:
category: person
category: person
category: person
category: person
category: bicycle
category: backpack
category: person
category: bicycle
category: person
category: motorcycle
category: handbag
category: handbag

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it a man?
a: N/A
q: Is the person on a bike?
a: Yes
q: Can you see the person's legs?
a: Yes
q: Is the person wearing a helmet?
a: No
q: Does the person have a messenger back behind him?
a: Yes