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

Guessing-game dialogue about one of the objects:
q: is it traffic signal?
a: N/A
q: is it part of signal?
a: Yes
q: is it red color?
a: No
q: is it yellow?
a: No
q: is it green?
a: No
q: Is it the right signal group?
a: No
q: is it in left side group?
a: Yes
q: is it whole left side group?
a: Yes