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