Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Riding a horse outside crossing a bridge and riding a horse inside.
 The question and answer:
Premise: "A horse and jockey dash across a river with a bridge full of observers in the background."
Based on this premise, can we conclude that the hypothesis "A man is riding a horse inside." is true?
Options:
- yes
- it is not possible to tell
- no
The answer is no