instruction: Is the next sentence syntactically and semantically acceptable?

I believed that the sun is out.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

To behave oneself in public is expected.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

How did you solve the problem?
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Medea thought that, after the executioner had left, Poseidon would be relieved.
OPTIONS:
- unacceptable
- acceptable

response:
acceptable