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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a bat?
a: No
q: is it a sign?
a: No
q: is it an item on the field?
a: Yes
q: is it home plate?
a: No
q: is it behind the batter?
a: Yes
q: is it white?
a: No
q: is is the blue duffle bag?
a: No
q: is it the railing?
a: No
q: is it being worn?
a: No
q: is it the dirt?
a: No
q: Is it to our left of the batter?
a: No
q: is it the banner?
a: No
q: I am stumped ..is it a chalk line?
a: No