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: Students objected to the teacher.

SOLUTION: acceptable

PROBLEM: Sam didn't pick those packages up until it had stopped raining which are to be mailed tomorrow.

SOLUTION: unacceptable

PROBLEM: John liked anything that was placed before him.

SOLUTION:
acceptable