instruction: Is the next sentence syntactically and semantically acceptable?

The fans were deliberately provoked by a rival group.

response: acceptable


instruction: Is the next sentence syntactically and semantically acceptable?

At least three girls saw anything.

response: unacceptable


instruction: Is the next sentence syntactically and semantically acceptable?

He has often seen Mary.

response: acceptable


instruction: Is the next sentence syntactically and semantically acceptable?

Smith envied his good fortune to Jones.

response:
unacceptable