Objects in the image:
category: person
category: person
category: person
category: skateboard
category: person
category: person
category: person
category: person
category: person
category: skateboard
category: skateboard
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 this person with a skate?
a: No
q: Is it the boy in the white t-shirt?
a: Yes