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