public Parser dataRecords() {
        if (dataRecordsParser == null) {
           FutureParser future = scoped("dataRecords");
           dataRecordsParser = future;
           future.setParser(
               sequence(
                   optional(
                       token("DATA")
                   ),
                   choice(
                       sequence(
                           token("RECORD"),
                           optional(
                               token("IS")
                           )
                       ),
                       sequence(
                           token("RECORDS"),
                           optional(
                               token("ARE")
                           )
                       )
                   ),
                   plus(
                       dataName()
                   )
               )
           );
        }

        return dataRecordsParser;
    }