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