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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a vehicle or part of a vehicle?
a: No
q: is it a article of clothing?
a: No
q: is it a tree?
a: No
q: is it a hand rail?
a: No
q: is it part of the street or sidewalk?
a: Yes
q: is it a line on the street?
a: No
q: is it alight pole?
a: No
q: is it the round sidewalk on the left?
a: No
q: is it a sidewalk?
a: No
q: is it a man hole cover?
a: No
q: is it a trash can?
a: No
q: is it a part of the street?
a: Yes
q: is it in front of the red truck?
a: No
q: is it close to the black truck?
a: Yes
q: Is it the double yellow thing in front of the black truck?
a: No
q: Is it the other double yellow thing further in front of the black truck?
a: No