public Parser allocateStatement() {
        if (allocateStatementParser == null) {
           FutureParser future = scoped("allocateStatement");
           allocateStatementParser = future;
           future.setParser(
               sequence(
                   token("ALLOCATE"),
                   choice(
                       sequence(
                           arithmeticExpression(),
                           token("CHARACTERS")
                       ),
                       qualifiedDataName()
                   ),
                   optional(
                       token("INITIALIZED")
                   ),
                   optional(
                       sequence(
                           token("RETURNING"),
                           qualifiedDataName()
                       )
                   )
               )
           );
        }

        return allocateStatementParser;
    }