Objects in the image:
category: sandwich
category: sandwich
category: knife

Guessing-game dialogue about one of the objects:
q: is it a knife?
a: No
q: is it food?
a: Yes
q: is it a single ingredient?
a: No
q: is it the whole sandwich below the knife?
a: No
q: is it a part of that sandwich?
a: Yes
q: at the left half?
a: No
q: the right half of the sandwich?
a: Yes