code: static String filter(Matcher<?> matcher) {
  		String matcherToString = matcher.toString();
  		for (String wordToRemove : wordsToRemove) {
  			matcherToString = matcherToString.replaceAll(wordToRemove, "");
  		}
  		return matcherToString;
  	}
docs: Filter words from the <code>matcher.toString()</code> so it looks nicer
  when printed out. E.g. "not not" is removed and "is" are removed.
  
  @param matcher
  the matcher
  @return A filtered version of the {@link Matcher#toString()}.