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