Objects in the image:
category: person
category: chair
category: person
category: skateboard
category: person
category: person
category: person
category: person
category: person
category: umbrella
category: person
category: backpack
category: bicycle
category: person
category: skateboard
category: person
category: handbag
category: person
category: chair
category: person

Guessing-game dialogue about one of the objects:
q: is it  a person?
a: No
q: is it in the ground?
a: No
q: is it on left side of picture?
a: Yes
q: is it chair?
a: No
q: is it umbrella?
a: No
q: is it orange or white?
a: No
q: Is it near the people skateboarding?
a: No
q: is it near the person sitting on chair?
a: No
q: is it blue?
a: No
q: is it skater?
a: No
q: is it lying on ground?
a: No
q: is it on right half of picture?
a: No
q: is it black coloured?
a: Yes