Please answer the following question by reasoning step-by-step. Premise: "A skier is going uphill."
Based on this premise, can we conclude that the hypothesis "Dragging a fir tree behind them." is true?
Options:
- yes
- it is not possible to tell
- no. Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The skier did not notice the large tree dragging behind him. So the answer is it is not possible to tell.