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: Robert thinks that student should eat asparagus.

SOLUTION: acceptable

PROBLEM: There is a hole in the rug which Toby bought in Boston.

SOLUTION: acceptable

PROBLEM: Lee is believed to not like Kim.

SOLUTION:
acceptable