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