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".

I admired his honesty.
acceptable

Linda taped the box with two-sided tape.
acceptable

If my father, he comes home late, my mother always grills him.

unacceptable