which subsidiary of copa airlines serves both tocumen international airport and gustavo rojas pinilla international airport ?
select distinct var_uri where brack_open dbr_Copa_Airlines dbo_subsidiary var_uri sep_dot var_uri dbo_targetAirport dbr_Tocumen_International_Airport sep_dot var_uri dbo_targetAirport dbr_Gustavo_Rojas_Pinilla_International_Airport sep_dot brack_close