[ num ] sp capword sp caplet . sp capword sp capword sp capword sp capword - capword sp capword sp capword sp capword . sp upword : capword sp othword sp capword sp capword , sp capword sp capword , sp capword ; sp year . sp upword / num / year . sp capword othword : sp othword : / / othword . othword . othword . othword / othword / othword othword num . num . num . num . num .