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".

Q: My mother baked me a birthday cake.

A: acceptable
****
Q: John loves his puppy.

A: acceptable
****
Q: Who do you think that saw Bill?

A:
unacceptable
****