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