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