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