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

Guessing-game dialogue about one of the objects:
q: is it a train?
a: No
q: is it a sign?
a: No
q: is it red?
a: No
q: is it the sidewalk?
a: No
q: is it on the sidewalk?
a: Yes
q: is it a person?
a: Yes