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]: The captain named Seafarer to the ship.
[A]: unacceptable


[Q]: I have some voice exercises to play the guitar and sing.
[A]: unacceptable


[Q]: There was a yellow collar on the dog which the car injured.
[A]:
acceptable