Q: "a man dragging between two horses holding on to the horse on his right" Does this mean that "The man was being drug between two horses as he held the horse to the right."?
A: yes

Q: "A little girl in a red shirt going down a purple slide." Does this mean that "A human in clothing."?
A: yes

Q: "A young man in shorts and t-shirt is snowboarding under a bright blue sky." Does this mean that "the man is very cold"?
A: it is not possible to tell

Q: "Someone in a pink shirt is riding a brown horse in a rodeo." Does this mean that "The outfielder is waiting to catch the flyball for the final out."?
A:
no