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

Guessing-game dialogue about one of the objects:
q: is it train?
a: No
q: is it person?
a: Yes
q: is it black?
a: No
q: is it gray with white?
a: Yes
q: is it near black?
a: Yes
q: he was walking?
a: Yes