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