Objects in the image:
category: fork
category: pizza
category: pizza
category: knife

Guessing-game dialogue about one of the objects:
q: Is it edible?
a: Yes
q: Is it part of the pizza on the top?
a: No
q: Is it part of the pizza on the bottom?
a: Yes
q: Is it green?
a: N/A
q: Is it that whole slice of pizza?
a: Yes