Objects in the image:
category: person
category: backpack
category: person
category: person
category: person
category: person
category: person
category: bus
category: person
category: person
category: person
category: person
category: backpack
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: Yes
q: is in the bus?
a: No
q: are they on the right?
a: No
q: on the left?
a: Yes
q: wearing black?
a: Yes
q: wearing a cap?
a: Yes