Claim: "A White blood cell fights against various different infections."
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. White blood cells are the protector cells of the immune system. The answer is yes.

Is the following a factual statement?
"Alec Guinness played opposite Lauren Bacall in the film The Big Sleep."
Options:
- yes
- no

Let me think out loud. Humphrey Bogart, not Alec Guinness, starred alongside Lauren Bacall in The Big Sleep. The answer is no.

Is the following statement true?
"Jürgen Klinsmann played quarterback on the various teams he played on."
Let me think out loud. Although he played "football". He did not play American football and quarterback is not a real position in the sport he played. The answer is no.