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