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