public Parser copyReplacementInstruction() {
        if (copyReplacementInstructionParser == null) {
           FutureParser future = scoped("copyReplacementInstruction");
           copyReplacementInstructionParser = future;
           future.setParser(
               sequence(
                   copyOperandName(),
                   token("BY"),
                   copyOperandName()
               )
           );
        }

        return copyReplacementInstructionParser;
    }