public Parser copyOperandName() {
        if (copyOperandNameParser == null) {
           FutureParser future = scoped("copyOperandName");
           copyOperandNameParser = future;
           future.setParser(
               choice(
                   sequence(
                       optional(
                           choice(
                               token("LEADING"),
                               token("TRAILING")
                           )
                       ),
                       pseudoLiteral()
                   ),
                   verb(),
                   literal(),
                   identifier(),
                   cobolWord()
               )
           );
        }

        return copyOperandNameParser;
    }