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