He was the Russian cosmonaut that beat the American into space.
yes
Claim: "The first person to be launched into space was Yuri Gagarin."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no

Microwaves are not visible and so can't be detected by observational astronomy.
no
Is the following sentence factually correct?
"Observational astronomy estimated high level of Cosmic microwave background during gravitational lensing."
Options:
- yes
- no

The Book of Joshua is a book of the Bible.
yes
Yes / no, is the following a verifiable fact?
"Religious people study the Book of Joshua."