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