Is the following sentence factually correct?
"Johnny Cash performed the song a boy named Sue."
Options:
- yes
- no

Let me think out loud. A boy named Sue is a song heavily associated with Johnny Cash. The answer is yes.

Yes / no, is the following a verifiable fact?
"Jeremy Irons invented the ironing machine."

Let me think out loud. Jeremy Irons is not an inventory and this item was invented before he was born. The answer is no.

Is the following sentence factually correct?
"The birth certificate of 50 Cent says Curtis James Jackson III."
Options:
- yes
- no
Let me think out loud. Curtis James Jackson III is 50 Cent's real name. The answer is yes.