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