Objects in the image:
category: skateboard
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: on the skateboard?
a: No
q: on the left?
a: Yes
q: near the front?
a: Yes
q: wearing red shirt?
a: No
q: to left of red shirt?
a: Yes
q: Are they wearing a blue shirt and blue hat?
a: Yes