Is the following sentence factually correct?
"The Food Network has the absolute best Chocolate brownie recipe."
Options:
- yes
- no

Let me think out loud. This is just an opinion; not everyone will agree that they have the best brownie recipe. The answer is no.

Yes / no, is the following a verifiable fact?
"David Mamet wrote plays, directed films, and penned books."

Let me think out loud. These are all true of David Mamet and are generally well-known facts. The answer is yes.

Is the following sentence factually correct?
"Zheng Jie plays tennis, and is one of China's most successful players of all time."
Options:
- yes
- no
Let me think out loud. Zheng Jie's major claim to fame is the number of titles and awards she has won playing tennis for China. The answer is yes.