Question: Yes / no, is the following a verifiable fact?
"Lauryn Hill retired from rapping in 2015."

Let me think..... Lauryn Hill has continued to release new music, with her most recent release occurring in 2019. The answer is no.

Question: Is the following sentence factually correct?
"Phish currently consists of 4 band members."
Options:
- yes
- no

Let me think..... The band has 4 active members as of 2020. The answer is yes.

Question: Does the following sentence make sense?
"The Great Wall of China protected people of China from unwanted invaders."
Options:
- yes
- no

Let me think..... The wall is very hard to traverse, and is an effective strategy in keeping people from crossing over it easily. The answer is yes.

Question: Is the following a factual statement?
"Ada Lovelace died from stomach cancer."
Options:
- yes
- no
Let me think..... If you Google it you find that she in fact died from uterine cancer. The answer is no.