public Parser screenSection() {
        if (screenSectionParser == null) {
           FutureParser future = scoped("screenSection");
           screenSectionParser = future;
           future.setParser(
               sequence(
                   token("SCREEN"),
                   token("SECTION"),
                   token("."),
                   optional(
                       skipto(
                           choice(
                               paragraphStart(),
                               sectionStart(),
                               divisionStart()
                           )
                       )
                   )
               )
           );
        }

        return screenSectionParser;
    }