Ques: Claim: "On average, American black bear outweigh polar bears and grizzly bears, and are considered the largest bear species."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
Ans: I'm thinking hard. So here's my take: They're in the middle, and both polar bears and grizzlies are larger on average. The answer is no.
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Ques: Does the following sentence make sense?
"Birdwatchers sight Kingfishers often in Africa."
Options:
- yes
- no
Ans: I'm thinking hard. So here's my take: Kingfishers are a type of bird, some of which reside in Africa. The answer is yes.
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Ques: Does the following sentence make sense?
"The vietnam war took place in the 1990s."
Options:
- yes
- no
Ans:

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
I'm thinking hard. So here's my take: The 1990s gave rise to many interesting figures. The answer is no.
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