"Robin Williams worked as an actor and a comedian."
Is the above claim true?
Options:
- yes
- no

Let me think out loud. Robin Williams is well known as an actor and comedian. The answer is yes.

Is the following sentence factually correct?
"Hildegard of Bingen ate 7 apples each day to ensure her health."
Options:
- yes
- no

Let me think out loud. The sentence is false because there aren't any evidence pieces to indicate that this may be true. The answer is no.

Yes / no, is the following a verifiable fact?
"The Persian Gulf borders Iran and Saudi Arabia."
Let me think out loud. The Persian gulf is a body of water classified as a sea and it is located in Asia on world maps. The answer is yes.