Objects in the image:
category: person
category: car
category: car
category: person
category: person
category: bicycle
category: car
category: tennis racket
category: bicycle
category: person
category: person
category: person
category: person
category: sports ball
category: car
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: tennis ball?
a: Yes