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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Are they on the skateboarding ramp?
a: No
q: Are they standing close to us, in the grass?
a: No
q: Are they in the background?
a: No
q: Are they on the other side of the skateboarding ramp?
a: No
q: Are they leaning with their arms folded against the fence?
a: No
q: Are they wearing a red shirt?
a: No
q: Are they wearing yellow?
a: No
q: Are they wearing a green shirt?
a: N/A
q: There are two people wearing a green shirt, is it one of them?
a: No
q: Are they wearing a blue shirt?
a: No
q: Are they wearing a white shirt?
a: No
q: Are they wearing a grey shirt?
a: No
q: Does the shirt have a plaid pattern?
a: No
q: Are they wearing a hat?
a: No
q: Are they wearing a black shirt?
a: Yes
q: Are they watching the skateboarder on the ramp?
a: No
q: Are they leaning over the side of the ramp?
a: Yes
q: Are they on the right side?
a: Yes
q: So, They ARE on the skateboarding ramp?
a: Yes