which company developed both tom clancy's ghost recon advanced warfighter and tom clancy's rainbow six ?
SELECT DISTINCT var_uri where brack_open dbr_Tom_Clancy's_Ghost_Recon_Advanced_Warfighter dbo_developer var_uri sep_dot dbr_Tom_Clancy's_Rainbow_Six_ attr_open video_game attr_close dbo_developer var_uri brack_close