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: In the book, he talks about his ups and downs at school.

SOLUTION: acceptable

PROBLEM: Fred gave the ball over Molly.

SOLUTION: unacceptable

PROBLEM: The King of Rock and Roll's records led to dancing.

SOLUTION:
acceptable