This is common knowledge for anyone knowing the geography of the United States.
yes
Yes / no, is the following a verifiable fact?
"The Detroit River flows through the Straits of Michigan."

Bill Gates is an American inventor who brought the greatest revolution to personal computer technology in the 1980's.
yes
Yes / no, is the following a verifiable fact?
"Bill Gates unarguably invented America's most successful personal computer in the 1980's."

The Mars 2020 mission actually was launched in June of 2020.
no

Is the following a factual statement?
"The Mars 2020 mission launched in July of 2020."
Options:
- yes
- no