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