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