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: The men are dancing.

Answer: acceptable


Question: Whether this is feasible hasn't yet been determined.

Answer: acceptable


Question: The effectiveness of teaching and learning depends on several factors.

Answer:
acceptable