Objects in the image:
category: person
category: car
category: bicycle
category: person
category: motorcycle
category: car
category: person
category: backpack
category: car
category: person
category: bus
category: person
category: truck
category: bicycle
category: person
category: person
category: car
category: car

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: N/A
q: is it a bus?
a: No
q: is it the truck to the left?
a: No
q: is it a bike?
a: Yes
q: is it the one the guy in the red shirt is closest to?
a: Yes