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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: are they in the walkway coming toward camera?
a: Yes
q: is it the 1st man?
a: Yes