<prompt> Translate the following text to EnglishShirika la Washington Legal Foundation, ambalo ni shirika la Washington D.C. linalotetea haki za mali binafsi, lilimshtaki mahakama ya shirikisho mwaka 1997 ili kufuta sheria hiyo.  <response>: The Washington Legal Foundation a Washington, D.C., organization that defends private property rights sued in federal court in 1997 to overturn the practice. 