<prompt> Nginikeze isibonelo sezinto eziwubala kulesi sigaba: ezombusazwe  <response>: Yisiphi isifundazwe okwakusuka kuso isishayamthetho sokugcina sase-United States esasikhonza phakathi nobuongameli bukaJohn F. Kennedy, uLyndon B. Johnson, noRichard Nixon? EHawaii 