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

Guessing-game dialogue about one of the objects:
q: is it green?
a: No
q: is it a person?
a: No
q: does it have writing on it?
a: No
q: is it black?
a: No
q: is it white?
a: No
q: is it silver?
a: No
q: can you ride it?
a: Yes
q: is it brown?
a: No