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