TASK DEFINITION: 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".
PROBLEM: John must do not have eaten.

SOLUTION: unacceptable

PROBLEM: I know which guys you've dated, but I don't know which guys you haven't.

SOLUTION: acceptable

PROBLEM: Susan doesn't eat her vegetables enough.

SOLUTION:
acceptable