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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a sign?
a: No
q: is it the bike?
a: No
q: is it the machine on the bike?
a: No
q: is it the stand on the right?
a: No
q: is it the knife?
a: Yes