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: Ellen conferred for Helen to come.

A: unacceptable
****
Q: There is enough of the bread left to have tomorrow.

A: acceptable
****
Q: Bill told me something awful: that ice won't sink.

A:
acceptable
****