Analytical Phrase Filter

This example is for pornography.

Here is the concept we have evolved. This is what works the best at
this time for pornography.

Something has to do something to something.

a b c

________ _______ ________

That is the essence of the phrase filter.

So example.

(blond, redhead, dog, gay man, etc, etc) [sucks,*****, *****, etc, etc,
etc,] a big {cock,****,****,etc etc etc}

Craft the permutations and combinations of these elements and you
have a porn "analytical phrase filter". And if a page has these
elements you are very likely correct about the nature of the page.

This concept seems to work the best.