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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: standing ??
a: N/A
q: leaning on a skate?
a: Yes
q: the closest one?
a: No
q: the one in black shirt?
a: Yes