[ capword ( year ) ] sp capword - capword sp capword sp ( othword . ) . sp capword - capword : sp capword , sp capword , capword , sp capword , sp othword sp othword sp capword sp num . num sp othword sp upword , sp capword , sp num . - num . sp capword year , sp capword , sp othword sp num sp othword sp capword - capword sp ( capword , sp year ) . sp upword sp num - num - num - num .