Objects in the image:
category: skateboard
category: person
category: bottle
category: person
category: bench
category: bottle
category: bottle
category: person
category: person
category: person
category: bench
category: person
category: bottle
category: bottle
category: person
category: person
category: skateboard
category: backpack
category: backpack
category: bottle

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: is a bottle?
a: No
q: is a bag?
a: Yes
q: is it full black?
a: Yes