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: Which city and to which conference did Bill go to?

Answer: unacceptable


Question: I worded the telegram after the party tersely.

Answer: unacceptable


Question: There exists only one truly amphibian mammal.

Answer:
acceptable