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 angrier Sue gets, the more Fred admires her.
[EX A]: acceptable

[EX Q]: How much harder has it rained, when you see a faster flow in the river?
[EX A]: acceptable

[EX Q]: They rumor that he left town.
[EX A]:
unacceptable