list the common prime minister of the edmund fitzalan-howard and ramsay macdonald ?
SELECT DISTINCT var_uri where brack_open dbr_Edmund_FitzAlan-Howard,_1st_Viscount_FitzAlan_of_Derwent dbo_primeMinister var_uri sep_dot dbr_Ramsay_MacDonald dbo_primeMinister var_uri brack_close