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".
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Question: That the march should go ahead and that it should be cancelled have been argued by different people at different times.

Answer: acceptable


Question: What did he look up?

Answer: acceptable


Question: Usually, any lion is majestic.

Answer:
unacceptable