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 angrier Sue gets, the more Fred admires her.
acceptable

Penny rowed across the lake.
acceptable

Martha carved beautiful toys out of this wood.

acceptable