instruction: Is the next sentence syntactically and semantically acceptable?

There tries to leave the country.
OPTIONS:
- unacceptable
- acceptable

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Alan made the loaf with strong white flour.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Stephen believed there to be a fountain in the park.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

They know if Mary won.
OPTIONS:
- unacceptable
- acceptable

response:
acceptable