Q: Yes / no, is the following a verifiable fact?
"One can find that Apollo 13 is a spacecraft launched by the Saturn rocket."
A: yes
How to explain the answer: You can look it up on wiki or any other site.

Q: Does the following sentence make sense?
"Jane Austen wrote books while women authors were uncommon."
Options:
- yes
- no
A: yes
How to explain the answer: Jane Austen lived in the 1800s when women were not prominent in the arts.

Q: Is the following a factual statement?
"People first began Alpine skiing in Kenya."
Options:
- yes
- no
A: no
How to explain the answer: Alpine skiing can be traced to ancient times in snowy areas like Russia, Finland, Sweden and Norway.