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

Guessing-game dialogue about one of the objects:
q: person in the crowd?
a: Yes
q: player ??
a: No
q: first row and can see him /her clearly?
a: Yes
q: first from right?
a: No
q: 2nd from right?
a: No
q: 3rd ??
a: No
q: 4th ??
a: No
q: 5th with white cap on?
a: Yes
q: white cap, blue jacket and white tee inside?
a: Yes