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