Objects in the image:
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: baseball glove
category: person
category: person
category: person
category: sports ball
category: person
category: baseball bat
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it on a person?
a: Yes
q: is it on the batter?
a: No
q: is it on the catcher?
a: Yes
q: is it his helmet?
a: No
q: is it his knee pads?
a: No
q: is it his glove?
a: Yes