Objects in the image:
category: person
category: bench
category: person
category: person
category: skateboard
category: dog
category: backpack
category: person

Guessing-game dialogue about one of the objects:
q: person ??
a: No
q: skate ??
a: No
q: on left of skater?
a: Yes
q: chair / bank?
a: No
q: dog ??
a: No
q: tree ??
a: No
q: red bag on ground?
a: Yes