Objects in the image:
category: bench
category: person
category: person
category: person
category: skateboard
category: person
category: bench
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 the person in the middle on the board?
a: No
q: the person on the left only showing part of him?
a: No
q: are they sitting?
a: Yes
q: with a group?
a: Yes
q: in the first row?
a: Yes
q: are they wearing a white shirt?
a: Yes
q: under the skateboarders wheel and a bit to the left?
a: Yes