Definition: In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: obscene and non-obscene. A comment is obscene if it is considered offensive to the public sense of decency, for example because it too obviously relates to sex or contains language regarded as taboo in polite usage.
Input: Comment: The allegation we should be most careful with is that so-and-so lied.  Amazingly, some people don't know what it takes to prove a lie.  A lie is a false statement, KNOWN to be false by the person who utters it.  John Hobson, a Harvard man, should have learned that in 3rd grade.  

Hobson says of Pandora that she "undoubtedly believes what she writes," but practically in the next breath, says of her: "Pandora lies, and her lies have regularly been shown to be lies." 

Well, which is it?   Does she believe what she says (in which case she cannot possibly be a liar), or does she know the falsehood of what she says and says it anyway (in which case she IS a liar)?  

I mention these things as one who generally agrees with Pandora.  I don't believe she has ever lied, and have only rarely thought she is wrong.  Before one calls another a "liar," he at least ought to know what it means to lie, and it's hard to believe a Harvard man doesn't know.

Non-obscene