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