Stream of consciousness rationale: The boat is occupied by only one person or two people. Both cannot be true.
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: If "Two people are spending good time in their boat." does that mean that "There is only one person in the boat."?
Options:
- yes
- it is not possible to tell
- no
A: no