Objects in the image:
category: suitcase
category: person
category: car
category: person
category: person
category: person
category: person
category: truck
category: person
category: backpack
category: suitcase
category: backpack

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: a person on the truck?
a: No
q: the person wearing black with the blue bag to the left of the truck?
a: No
q: the person standing right in front of the truck with a grey shirt?
a: Yes