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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Is he in the background?
a: Yes
q: Is he facing away from the main skateboarder?
a: No
q: Is he wearing shorts?
a: No
q: Is he the guy in red?
a: Yes