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: Heather cabled for Sara to come.

A: acceptable
****
Q: I doubt you can help me in understanding this.

A: acceptable
****
Q: You should always lock your door, no matter how fancy the hotel.

A:
acceptable
****