instruction: Is the next sentence syntactically and semantically acceptable?

I resigned because Mary hired someone.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

We talked about that he was sick for days.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

That Jean left is likely.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

John didn't hit a home run, but I know a woman who did.

response:
acceptable