**Q**
Yes / no, is the following a verifiable fact?
"Influenza can cause fevers and muscle aches."
**A**
yes
Influenza is a disease caused by a virus and can lead to different symptoms.

**Q**
Yes / no, is the following a verifiable fact?
"The European pine marten fur is white in color."
**A**
no
The European pine marten's fur is dark brown because it lives in a wooded area and has adapted to this.

**Q**
Is the following statement true?
"Back to the Future 1 takes place in the years 1985 and 1955."
**A**
yes
In the movie Marty is taken to 1955 by the Doc from 1985.