Objects in the image:
category: knife
category: fork
category: bowl
category: couch
category: pizza
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the pizza?
a: No
q: is it the black thing on the bottom right corner?
a: No
q: is it the fork?
a: No
q: the red sauce?
a: No
q: the watch on his hand?
a: No
q: is it the knife?
a: Yes