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