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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: one of the players?
a: Yes
q: blue shirt?
a: Yes
q: number 2?
a: No
q: between the two green shirts?
a: Yes