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

Guessing-game dialogue about one of the objects:
q: Is it a bus?
a: Yes
q: Is it the big bus in the foreground of the picture?
a: No
q: Is it part of the big bus in the foreground of the picture?
a: No
q: Is it the part of a bus we can see touching the left side of the picture?
a: No
q: Is it the bus behind the big bus  in the foreground of the picture?
a: Yes