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

Guessing-game dialogue about one of the objects:
q: is it bus?
a: Yes
q: is it the bus behind first bus?
a: No
q: is it the first one from front?
a: No
q: is it the bus on which 252 is written?
a: Yes