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