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 tall, kind, handsome man kicked the ball.
acceptable

John believed it.
acceptable

How much harder has it rained, the faster a flow you see in the river?

acceptable