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

Guessing-game dialogue about one of the objects:
q: it is a car?
a: No
q: it is a truck of the fire department?
a: No
q: it is a bus?
a: No
q: it is a tent?
a: No
q: it is a garbage can?
a: No
q: it is someone?
a: No
q: it is a logo?
a: No
q: it is a tree?
a: No
q: it is white?
a: Yes
q: it is in front of the photo?
a: No
q: it is the truck in the back of the photo?
a: Yes
q: is it the one on the left?
a: Yes