Objects in the image:
category: person
category: bicycle
category: person
category: person
category: bench
category: person
category: person
category: person
category: person
category: bicycle
category: umbrella
category: suitcase
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: i it bench?
a: Yes
q: person / ?
a: No
q: bench / ?
a: Yes