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".

[EX Q]: The more contented the nurses began to believe that we were going to pretend to be, the more angry we grew at the doctors.
[EX A]: unacceptable

[EX Q]: Ellen conferred with Helen.
[EX A]: acceptable

[EX Q]: He did not leave.
[EX A]:
acceptable