Yes / no, is the following a verifiable fact?
"Ships use lines of Longitude to determine their location."

Let me think out loud. Longitude lines provide information and coordinates for positioning around the globe. The answer is yes.

Is the following a factual statement?
"O. J. Simpson allegedly abused several women."
Options:
- yes
- no

Let me think out loud. O. J. Simpson was on trial for the murder of his ex-wife and has also been accused of abuse by other women. The answer is yes.

Claim: "Einstein field equations allow the U.S. government to build faster then light secret space craft."
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. One unbreakable rule of our universe is the speed of light at 187,000 miles per second. The answer is no.