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 it a person?
a: No
q: Is it a skateboard?
a: No
q: Is it a water bottle?
a: N/A
q: Drink bottle?
a: N/A
q: Next to brown backpack?
a: No
q: I don't see another drink bottle... Is it on the left half of picture?
a: Yes
q: Is it on that concrete bench?
a: Yes
q: Is it next to a backpack?
a: No
q: So it is the one next to the brown backpack like I asked?
a: No
q: There's another drink bottle?
a: No
q: Is it a backpack?
a: No
q: Is it on the bench?
a: No
q: is it a person?
a: No
q: is it a skateboard?
a: No
q: a bench?
a: No
q: is it a bag?
a: No
q: a water bottle?
a: No
q: is it on the right of the image?
a: No
q: the left?
a: Yes
q: its not a bag?
a: No
q: a traffic light?
a: No