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