public Parser declarativeSection() {
        if (declarativeSectionParser == null) {
           FutureParser future = scoped("declarativeSection");
           declarativeSectionParser = future;
           future.setParser(
               sequence(
                   sectionName(),
                   token("SECTION"),
                   token("."),
                   useStatement(),
                   star(
                       sentence()
                   ),
                   star(
                       paragraph()
                   )
               )
           );
        }

        return declarativeSectionParser;
    }