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