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