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