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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: Is it one of the four people on the track?
a: Yes
q: is it the person out ahead of the other three?
a: No
q: Moving toward the right of the picture, Is it the person squatting down?
a: No
q: Is it the kid on the bicycle?
a: No
q: Is it the runner in a bright blue shirt and black pants?
a: Yes
q: Is it ALL of the runner that we can see in the picture?
a: Yes