Objects in the image:
category: book
category: book
category: book
category: book
category: book
category: book
category: book
category: book
category: book
category: knife
category: book
category: book
category: person
category: book
category: book

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a book?
a: Yes
q: is it on the shelf in the back left corner?
a: N/A
q: is it on that shelf?
a: No