public Parser titleStatement() {
        if (titleStatementParser == null) {
           FutureParser future = scoped("titleStatement");
           titleStatementParser = future;
           future.setParser(
               sequence(
                   token("TITLE"),
                   literal(),
                   optional(
                       token(".")
                   )
               )
           );
        }

        return titleStatementParser;
    }