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