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]: It was with a great deal of regret that I vetoed your proposal.
[EX A]: acceptable

[EX Q]: Robert thinks that student should eat asparagus.
[EX A]: acceptable

[EX Q]: I don't know the people present.
[EX A]:
acceptable