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: John talked to Bill about the exam.

A: acceptable
****
Q: The man who ordered ice cream said the pudding would be tasty.

A: acceptable
****
Q: It is rumored that he left town.

A:
acceptable
****