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