[ num ] sp capword sp upword . sp capword sp capword sp othword sp capword sp capword sp capword sp capword . sp capword sp capword , sp capword , sp upword : capword sp capword , sp capword sp capword , sp capword ; sp year . sp upword / num / year . sp capword sp othword : sp othword : / / othword . othword / othword / year . year .