Objects in the image:
category: bench
category: person
category: person
category: tennis racket
category: person
category: person
category: chair
category: person
category: chair
category: person
category: person
category: person
category: bench
category: person
category: person
category: person
category: person
category: person
category: backpack

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: the tennis player?
a: No
q: is he part of the audience?
a: Yes
q: first row ?
a: No
q: second row?
a: Yes
q: is ti a girl?
a: No
q: is he wearing white shirt?
a: No
q: is he wearing black?
a: No
q: wearing green shirt?
a: No
q: wearing light blue shirt?
a: No
q: is he wearing a cap?
a: No
q: wearing red?
a: No
q: yellow ??
a: No
q: did you counted second row from the bottom to the top?
a: Yes
q: do you see anyone wearing any other colors on that row? than the ones i said?
a: Yes
q: you must have eagle sight with colors, are they on the left side of the picture?
a: No
q: the right side then?
a: No
q: the center of the row?
a: Yes
q: you said not white, not light blue, are they wearing gray?
a: Yes