Is the following statement true?
"It is not very rare to find a Plum for sale at an American market."

Let me think out loud. Plums are a natural flora of North America. The answer is yes.

Is the following a factual statement?
"Malcolm X joined the X-Men during the comic series."
Options:
- yes
- no

Let me think out loud. Malcolm X's last name has nothing to do with X-Men. The answer is no.

Claim: "Harper Lee wrote the book To Kill a Mockingbird."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
Let me think out loud. Harper Lee is known as the author of this book. The answer is yes.