Objects in the image:
category: truck
category: person
category: car
category: truck
category: person

Guessing-game dialogue about one of the objects:
q: is it a sign?
a: No
q: Is it orange?
a: No
q: is it a car?
a: Yes
q: is it inside the car?
a: No
q: is it green?
a: No
q: Is it yellow?
a: No
q: Is it red?
a: No
q: is it white?
a: Yes
q: Is it on the left side of the screen?
a: Yes
q: Is it close to the red car?
a: Yes