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