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

Guessing-game dialogue about one of the objects:
q: is it in left?
a: Yes
q: is it train?
a: No
q: is it signal?
a: Yes
q: is it in front?
a: Yes
q: is it top one?
a: Yes
q: is it middle one?
a: No
q: is it left one?
a: Yes
q: are 3 in both line?
a: N/A