instruction: Is the next sentence syntactically and semantically acceptable?

Amanda carried the package.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

He can hardly believe that it's already over.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The men arrived all.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

There is only one chemical substance involved in nerve transmission.

response:
acceptable