Objects in the image:
category: person
category: baseball glove
category: backpack
category: baseball bat
category: person
category: person
category: person
category: backpack
category: bench
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the bat?
a: Yes
q: the one the batter is swinging?
a: Yes