Question: Yes / no, is the following a verifiable fact?
"Doctors use vitamin C to kill Leukemia."

Let me think..... Leukemia is treated by radiation, chemo, or bone marrow transplants. The answer is no.

Question: Is the following statement true?
"During the summer is when you can hear a lot of Cicada sounds."

Let me think..... Cicadas typically come out during the summer time. The answer is yes.

Question: Does the following sentence make sense?
"Jamestown, Virginia settlers arrived during a flourishing period for the area."
Options:
- yes
- no

Let me think..... The Jamestown settlers arrived in Virginia during a severe drought. The answer is no.

Question: Claim: "Swordfish practices shoaling and schooling and are seen in group aggregations."
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..... Swordfish swim alone or in very loose aggregations. The answer is no.