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