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