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: Mary came to read Fred's story, and I also came to.

SOLUTION: unacceptable

PROBLEM: Who do you wonder what bought?

SOLUTION: unacceptable

PROBLEM: Who is Ann going to send a picture to her teacher of, as soon as she gets home?

SOLUTION:
unacceptable