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