Is the following sentence linguistically acceptable?
Bill's mother's friends and John are waiting at the restaurant.

acceptable

Is the following sentence linguistically acceptable?
The coat which a girl came in who had worn was torn.

unacceptable

Is the following sentence linguistically acceptable?
Yuko rubbed the pizza with a garlic clove.

acceptable

Is the following sentence linguistically acceptable?
Once Janet left, Fred became far crazier.
acceptable