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

Guessing-game dialogue about one of the objects:
q: is it a bus?
a: No
q: is it a person?
a: Yes
q: is the person in the front bus?
a: No
q: is the person in the last row if the bus?
a: No
q: is the person in the last but one row in the bus?
a: Yes