code: public String remove(String txt) {
          for (Pattern p : patterns.keySet()) {
              System.out.println("p: "+p);
              System.out.println("b: "+txt);
              txt = p.matcher(txt).replaceAll(patterns.get(p));
              System.out.println("a: "+txt);
          }
          return txt;
      }
docs: Takes a string and returns it without ligatures in it
  
  @param txt
  line that is processed
  @return cleaned line