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: Lopez says that he has done more than simply give a fresh coat of paint to the site.

SOLUTION: acceptable

PROBLEM: Thunder frightens the dog.

SOLUTION: acceptable

PROBLEM: John to love Mary would be doubtful.

SOLUTION:
unacceptable