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

Guessing-game dialogue about one of the objects:
q: is it human?
a: No
q: is it bag?
a: No
q: is it bat?
a: Yes