For this chain-of-thought reasoning and answer, what was the question?
A half pipe is a man made structure to practice tricks where as a mountain is Nature.
 A: no
Q: Premise: "There is a snowboarder doing tricks in a half pipe."
Based on this premise, can we conclude that the hypothesis "The snow boarder is doing tricks on the side of the mountain." is true?
Options:
- yes
- it is not possible to tell
- no