Objects in the image:
category: potted plant
category: umbrella
category: person
category: traffic light
category: person
category: person
category: person
category: traffic light
category: person
category: person
category: person
category: person
category: person
category: truck
category: car
category: person
category: person
category: potted plant
category: person
category: car

Guessing-game dialogue about one of the objects:
q: is it umbrella?
a: No
q: is it person?
a: No
q: is it red vehicle?
a: No
q: is it police car?
a: No
q: is it signal?
a: No
q: is it part of building?
a: No
q: is it board?
a: No
q: is it orange cone?
a: No
q: is it vehicle?
a: Yes
q: that blue or black color little back part visible?
a: Yes