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

[EX Q]: Those idiots have no business on a boat.That leaping and jumping off will get you hurt or killed.I would have got them off my seiner before we untied from the dock.And none of them can dock a boat
[EX A]: Yes

[EX Q]: Maybe we shouldn't have spent the money on these fancy laser detectors and just used some flashlights in toilet paper rolls instead, and then waited for this collision of supermassive black holes a million years from now:
http://www.nytimes.com/2015/01/08/science/in-a-far-off-galaxy-2-black-holes-dance-toward-an-explosive-union.html?_r=2

The black holes involved in the current study were actually pretty small (61 suns combined) compared to the supermassive black holes at the centers of galaxies that may have masses up to billions of suns.
[EX A]: No

[EX Q]: Misdemeanors?!?! How is it possible that this doesn't rise to the level of felony abuse?!
[EX A]:
No