Question: Yes / no, is the following a verifiable fact?
"Darth Vader turned to the dark side of the force, leaving his Jedi master."
Ans and explanation: The answer is yes.
Explanation: In the Star Wars franchise, Darth Vader pledged his allegiance to the Sith.

Question: Yes / no, is the following a verifiable fact?
"Pythagoras acted in a lot of movies."
Ans and explanation: The answer is no.
Explanation: Pythagoras was a Greek philosopher who made important developments in mathematics, astronomy, and the theory of music, he was never an actor.

Question: Is the following a factual statement?
"John Kenneth Galbraith worked for several Democratic presidents."
Options:
- yes
- no
Ans and explanation: The answer is yes.
Explanation: John Kenneth Galbraith was active under Presidents Roosevelt, Kennedy, Truman, and Johnson.

Question: Is the following sentence factually correct?
"Jeremy Irons stars in many popular films and wins awards for his acting."
Options:
- yes
- no
Ans and explanation:
The answer is yes.
Explanation: Jeremy Irons is a famous movie star and has a long IMDB list.