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

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: No
q: is it road block?
a: No
q: is it on road?
a: No
q: is it blue direction board?
a: No
q: is it road sign board?
a: No
q: is it signal?
a: Yes
q: is it near building?
a: No
q: is it near tower?
a: Yes
q: is it part of signal?
a: Yes
q: is it top part of signal?
a: N/A
q: is it whole part of signal?
a: N/A