which country gave birth to the pratt & whitney r-2800 double wasp and general electric lm6000 aircrafts ?
SELECT DISTINCT var_uri where brack_open dbr_Pratt_&_Whitney_R-2800_Double_Wasp dbp_nationalOrigin var_uri sep_dot dbr_General_Electric_LM6000 dbp_nationalOrigin var_uri brack_close