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".

The sponge soaked up the water.
acceptable

Do not use these words in the beginning of a sentence.
acceptable

Fred knows which politician for her to vote for.

unacceptable

