Objects in the image:
category: person
category: tie
category: person
category: person
category: person
category: tennis racket
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is the object a person?
a: Yes
q: is the person a world renowned tennis champion?
a: No
q: is the person a camera man?
a: No
q: is the person wearing a hat?
a: N/A
q: is the person wearing blue?
a: No
q: Is the person wearing sunglasses?
a: Yes
q: is the person a man?
a: Yes
q: is he in the first row?
a: No
q: Is he in the last row?
a: Yes
q: is he wearing grey?
a: No
q: is he wearing white?
a: Yes