Objects in the image:
category: person
category: person
category: horse
category: horse
category: person
category: person
category: person
category: horse
category: horse
category: person
category: horse
category: horse
category: person
category: car
category: person

Guessing-game dialogue about one of the objects:
q: is it a horse?
a: No
q: is it a rider?
a: Yes
q: is it on the left half of the screen?
a: No
q: is any part of the rider's right arm showing?
a: Yes
q: Is any part of the rider's head showing?
a: Yes
q: is the rider in the front of the line?
a: No
q: is it a rider?
a: Yes
q: is the rider on the right side of the screen?
a: Yes
q: is the rider the first in the line?
a: No
q: Is the rider the second in the line?
a: No
q: Is the rider the third in the line on the right?
a: No
q: Is the rider the fourth in the line on the right?
a: Yes