instruction: Is the next sentence syntactically and semantically acceptable?

I did, as Bill had thought, go to the store.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Do not use these words in the beginning of a sentence.
OPTIONS:
- unacceptable
- acceptable

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

We listened to as little speech as possible.
OPTIONS:
- unacceptable
- acceptable

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

David wrote that you said that Anson thought that Julie had fainted
OPTIONS:
- unacceptable
- acceptable

response:
acceptable