Objects in the image:
category: tennis racket
category: person
category: chair
category: person
category: person
category: person
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: a person?
a: Yes
q: in side of court?
a: Yes
q: a player?
a: No
q: orange shirt?
a: No
q: camera persons?
a: N/A
q: left side of image?
a: No
q: lower right corner black thing?
a: No
q: back of 3 orange persons?
a: No
q: back of timer?
a: Yes