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