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

Guessing-game dialogue about one of the objects:
q: Is this a person?
a: No
q: Is this a skateboard?
a: Yes
q: Is the skateboard vertical?
a: Yes
q: Is it held by the guy in the orange shirt?
a: No