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