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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a skateboard?
a: No
q: bag  ??
a: Yes
q: is it the first on one the left?
a: Yes