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