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