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

[Q]: Never point a gun at someone unless your going to use it. Because for every minute you don't pull the trigger, is time for the other to scheme a way to get your gun and kill you with it.
[A]: Yes


[Q]: That's what President Teddy Roosevelt used to call "The White Man's Burden" and evangelical churches continue to do to this day.  To leave Oregon and go over to educate the poor and ignorant of the world so that our values become theirs because they are unable to take care of themselves.
[A]: Yes


[Q]: All religion evolved from ancient mythology. Can't stop evolution, but "separation of church and state" can keep religious superstition at bay. I hope :)
[A]:
No