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".
--------
Question: Mary's criticism of him was cruel.

Answer: acceptable


Question: Sandy sang a song.

Answer: acceptable


Question: That piece of ice is too big for for him to be able to pick up with a teaspoon to be likely.

Answer:
unacceptable