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

Example Input: Getting independent verification of any tests used is of high importance. We must make sure that any tests used are developmentally appropriate, free of racial and ethic bias, and for skills which are of actual value. Test the tests, and then test them again.  Students shouldn't be scare off learning by being forced to endure developmentally and culturally inappropriate instruction and tests.
Example Output: No

Example Input: I can see why comments taper off when you two guys appear with you comments. Neither of you has the remotest idea what you are talking about. Those damns are a spit in the ocean in terms of the electricity they generate. They were build to electrify the Rogue Valley in the early 20th century and have long outlived their usefulness. As the editorial writer says, the region is awash in surplus hydro from the Columbia River damns since the aluminum industry closed down. The region's utilities has been closing nuclear and fossil fuel plants because they are necessary. Do a bit of homework guys, before shooting off...your comments. You won't sound so foolish.
Example Output: Yes

Example Input: Why in nature are some animals "gay" and have to  go with it or die and when some humans are "gay" the religious say that it is not "nature" that made a human gay  but the human chose to be that way?
Most barnacles are hermaphroditic.  (Each individual barnacle both male and female).The ovaries are located in the base or stalk, and may extend into the mantle, while the testes are towards the back of the head. 
So if animals with no ability to reason have no choice in how they are designed by nature sexually then why would humans have to?
Example Output:
Yes