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