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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: train ??
a: No
q: signal ??
a: Yes
q: the tall silver one by the end of the yellow and red train car?
a: Yes
q: all of it?
a: No
q: ok is the blue and red thing part of it?
a: Yes
q: is it only the blue and red thing?
a: Yes