Objects in the image:
category: person
category: backpack
category: chair
category: person
category: person
category: frisbee
category: person
category: person
category: chair
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it human?
a: No
q: is it a tree?
a: No
q: is it a building?
a: No
q: is a person wearing it?
a: No
q: is it in the vicinity of a person?
a: Yes
q: is it a chair?
a: Yes
q: Is it the green chair on the right hand side?
a: No
q: is it the blue chair in the background behind the green one?
a: Yes