Q: Is the following a factual statement?
"Hounds purr when you scratch them behind the ears."
Options:
- yes
- no
A: The answer is no.
Chain of thoughts: Hounds are a type of dog, they don't purr like cats.

Q: Is the following sentence factually correct?
"Justin Bieber sings pop music and he originates from Canada."
Options:
- yes
- no
A: The answer is yes.
Chain of thoughts: This is true because one can stream his albums online.

Q: Claim: "Dextromethorphan suppresses persistent cough conditions caused by throat and/or bronchial irritation."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
A: The answer is yes.
Chain of thoughts: Cough suppression is the primary reason for the usage of the dextromethorphan drug.

Q: Is the following sentence factually correct?
"Recent studies have found that Substance dependence is decreasing all over the world."
Options:
- yes
- no
A:
The answer is no.
Chain of thoughts: Substance dependence is not decreasing everywhere, in some places it is rising significantly.