instruction: Is the next sentence syntactically and semantically acceptable?

Who protected him?
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

That the girl put a picture there proves her guilt.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Poseidon was asleep, when the executioner arrived.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The President thanked every soldier who had fought in the.
OPTIONS:
- unacceptable
- acceptable

response:
acceptable