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".

They said that Tom would pay up, and pay up he did.
acceptable

It was with a great deal of regret that I vetoed your proposal.
acceptable

Catherine did her homework.

acceptable