Objects in the image:
category: person
category: person
category: bottle
category: person
category: person
category: sandwich
category: bottle
category: knife
category: person
category: bottle
category: sandwich
category: dining table
category: sandwich

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: is a sandwich?
a: Yes
q: the cook who is cutting that sandwich?
a: No
q: the one which the client has?
a: Yes
q: the one to the right?
a: Yes
q: the sandwich which is open?
a: Yes