Q: Yes / no, is the following a verifiable fact?
"Lake Baikal creates the coldest temperatures in all the lakes."
A: The answer is no.
Chain of thoughts: Researchers need to test all lakes in Russia to ensure temperature.

Q: "The HSBC credit card enables users to make purchases in foreign countries."
Is the above claim true?
Options:
- yes
- no
A: The answer is yes.
Chain of thoughts: HSBC is an international bank, so its credit card has foreign exchange services.

Q: Is the following sentence factually correct?
"Unicorn creatures sport a singular horn and are a common theme for birthday parties."
Options:
- yes
- no
A: The answer is yes.
Chain of thoughts: Unicorns are often seen on party supplies and have a single horn on their head.

Q: Yes / no, is the following a verifiable fact?
"The Smithsonian Institution performs invasive tests on humans."
A:
The answer is no.
Chain of thoughts: The Smithsonian Institution is a group of museums not an experimental institution.