Q: Does the following sentence make sense?
"Sea otter form the smallest group of marine mammals and the heaviest in the weasel family."
Options:
- yes
- no
Chain-of-thought:

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
This sentence is true because one can read about them online. The answer: yes.