public Parser repeatedPhrase() {
        if (repeatedPhraseParser == null) {
           FutureParser future = scoped("repeatedPhrase");
           repeatedPhraseParser = future;
           future.setParser(
               sequence(
                   token("REPEATED"),
                   optional(
                       sequence(
                           integer(),
                           token("TO"),
                           integer()
                       )
                   )
               )
           );
        }

        return repeatedPhraseParser;
    }