Objects in the image:
category: person
category: sports ball
category: person
category: person
category: person
category: person
category: person
category: sports ball
category: train
category: person
category: person
category: person
category: person
category: person
category: sports ball
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: ball ??
a: Yes
q: in the air?
a: No
q: the one with more red?
a: No