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