instruction: Is the next sentence syntactically and semantically acceptable?

John had an error in the proof Sarah presented.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Cheryl stood the books from Edna to Sarah.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

We elected guardian's employer president the boy.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

This proved my hypothesis.

response:
acceptable