Stream of consciousness rationale: There must be a bicycle for a person to be riding a bicycle.
The question and answer pair are described below.

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
Q: Premise: "Person riding bicycle down dirt hill in wooded area."
Based on this premise, can we conclude that the hypothesis "Therei s a bicycle." is true?
Options:
- yes
- it is not possible to tell
- no
A: yes