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