You're given a sentence and your task is to classify whether the sentence is acceptable or not. Any sentence which is grammatically correct, has a naturalistic text, is written by a native speaker and which minimizes superfluous content is acceptable, otherwise unacceptable. If the sentence is acceptable then write "acceptable", otherwise "unacceptable".

Q: John knows whose book Mary bought and Tom talked.

A: unacceptable
****
Q: Near everyone Angleton did, Dulles stood.

A: unacceptable
****
Q: Who did you arrange for to come?

A:
unacceptable
****