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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a bike?
a: No
q: is it a camper?
a: Yes
q: is it on the right side of the field?
a: Yes
q: Is it the camper on the first left side of the picture?
a: No
q: Is it the second one?
a: No
q: do you see the camper that is between the blue gas tank and the red bikes headlight?
a: N/A
q: do you see it?
a: Yes
q: is it a camper?
a: N/A
q: is it above the red bike?
a: Yes
q: is it the thing closest to the front of the red bike?
a: No
q: is it blue?
a: No
q: is it a camper van?
a: Yes
q: is it above the red bike?
a: Yes
q: is it above the gas tank?
a: Yes
q: do you see the red car between the campers?
a: Yes
q: is it on the left of the car?
a: No