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 loved the policeman intensely with all my heart.

SOLUTION: acceptable

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

SOLUTION: acceptable

PROBLEM: There are only one chemical substance involved in nerve transmission.

SOLUTION:
unacceptable