content_filter.pl -- Ban list content filter

See also

- https://www.cs.cmu.edu/~biglou/resources/bad-words.txt

- https://www.freewebheaders.com/full-list-of-bad-words-banned-by-google/

 eval_content(+Text, -WordCount, -Score) is det

Evaluate the content of Text. WordCount is the number of non-trivial words and Score is the evaluation.

 wordlist(+Tokens, -WordList) is det[private]

Filter the token list. Removes numbers and joins typical escape patterns such as 't h i s' or 't.h.i.s'.

 read_word_list(+FileSpec, +List) is det[private]

Read a list of words into a fact.