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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Is the person one of the tree standing at the door?
a: Yes
q: Is the person wearing a white hoodie jacket?
a: No
q: Is it the person behind and to the right with a white paper in hand?
a: No
q: Is it the person in front with a black jacket?
a: Yes