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".

[Q]: He threw the letter into the wastebasket.
[A]: acceptable


[Q]: Which city and to which conference did Bill go to?
[A]: unacceptable


[Q]: John intimately spoke to Mary.
[A]:
unacceptable