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: I think you need to show yourself more than you do anyone else.

SOLUTION: acceptable

PROBLEM: The student protected him.

SOLUTION: acceptable

PROBLEM: His expectations are always lower than mine.

SOLUTION:
acceptable