Categorize the comment on the basis of obscenity. If the comment is obscene output Yes, otherwise output No.

Ex Input:
Yes - When The Wife Court Date.... Two POS's Here ~ !

Ex Output:
No

Ex Input:
But don't you want us to kill a lot more terrorist? It's clear Obama has no taste for an occupying war, and he won't carpet bomb. What's a good American to do?

Ex Output:
No

Ex Input:
I am sorry Craig. There's no point for you to come. They'll shoot the very last one soon enough, so it's not worth planning. I would forget about Denali. However, it's probably best because the natives, the new natives, sound rather hostile and they might be liable to shoot you too. They'd shoot anything that crawls, slithers, or walks on two or all four on this God's good earth. Yes, sadly, the wolves stories will end here.

Denali will become a different kind of wildlife attraction for tourists, and more of them, as I understand.

Cheers.

Ex Output:
No