**Q**
Yes / no, is the following a verifiable fact?
"Team Fortress 2 follows the original game developed by Activision."
**A**
no
The original game was a mod for Quake, developed by ID software.

**Q**
"Controlling Fermentation temperature ensures that brewed beer will be high in quality."
Is the above claim true?
Options:
- yes
- no
**A**
yes
Improper temperature during beer fermentation can ruin the taste of the final product.

**Q**
Yes / no, is the following a verifiable fact?
"Sally Ride released several books for children to read."
**A**
yes
Sally Ride is an author of children's books.