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