Objects in the image:
category: backpack
category: keyboard
category: person
category: backpack
category: laptop
category: backpack
category: laptop
category: keyboard
category: person
category: person
category: potted plant
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it on the left half of the picture?
a: Yes
q: is it outside the window?
a: No
q: is it to the left of the boy in black?
a: No
q: is it in a cubby?
a: No
q: is it in front of the boys?
a: Yes
q: is it the computer?
a: Yes