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".
--------
Question: Sam may have been being interrogated by the FBI.

Answer: acceptable


Question: I bought Manuel some flowers.

Answer: acceptable


Question: We keep those censored copies of the book hidden to protect the sensibilities of the prudish.

Answer:
acceptable