Objects in the image:
category: person
category: person
category: person
category: person
category: chair
category: person
category: person
category: chair
category: chair
category: sandwich
category: dining table
category: sandwich

Guessing-game dialogue about one of the objects:
q: is it food?
a: No
q: is it a person?
a: No
q: is it a plate?
a: No
q: is it furniture?
a: Yes
q: is it the table the food is on?
a: No
q: is it a chair?
a: Yes
q: is it on the left half of the photo?
a: Yes
q: is anyone sitting in it?
a: No
q: is it the one on the far left?
a: Yes
q: to the left of the man in the blue shirt?
a: Yes
q: in other words, behind him?
a: Yes