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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: Are they skating?
a: Yes
q: Is he wearing a helmet?
a: Yes