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: The place which I live at is the place where Route 150 crosses the Hudson River.

A: unacceptable
****
Q: I insist on seeing through all the students who had started out the term in my class.

A: unacceptable
****
Q: Dave left.

A:
acceptable
****