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