instruction: Is the next sentence syntactically and semantically acceptable?

There seems to stab an animal.

response: unacceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Mary was solving the problem.

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

The old pigs love truffles

response: acceptable

instruction: Is the next sentence syntactically and semantically acceptable?

Strings have been pulled many times to get students into that university.

response:
acceptable