Objects in the image:
category: truck
category: car
category: car
category: car
category: skateboard
category: bus
category: car
category: car
category: car
category: car
category: car
category: car
category: bus
category: car
category: truck
category: car
category: car
category: dog

Guessing-game dialogue about one of the objects:
q: the dog?
a: No
q: skateboard ??
a: Yes
q: all of it?
a: Yes