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