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