Question part
Is the following sentence factually correct?
"Buddy Holly has contributed to musical projects."
Options:
- yes
- no
Answer part
Oh man, I think this is the solution: Buddy Holly was an American singer, guitarist and rock and roll musician. The answer is yes.

Question part
Yes / no, is the following a verifiable fact?
"Scientists gain knowledge of outer space by observing Metroid."
Answer part
Oh man, I think this is the solution: Metroid is a video game, of little use to scientists. The answer is no.

Question part
Claim: "The highly regarded drug Bupropion is an effective treatment for depression."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
Answer part
Oh man, I think this is the solution: It has been proven in double blind studies. The answer is yes.

Question part
Does the following sentence make sense?
"One can often encounter Grilling at many a barbecue party."
Options:
- yes
- no
Answer part
Oh man, I think this is the solution: Grilling is a cooking technique that is particularly effective for barbecue. The answer is yes.