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: What proof that he has implicated have you found?

Answer: acceptable


Question: Copper rods bend easily.

Answer: acceptable


Question: Which quonset hut does the boy work in a skyscraper and the girl in?

Answer:
unacceptable