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