name the office holder whose predecessor is george curzon and successor is john anderson ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_predecessor dbr_George_Curzon,_1st_Marquess_Curzon_of_Kedleston sep_dot var_uri dbp_successor dbr_John_Anderson,_1st_Viscount_Waverley sep_dot var_uri a dbo_OfficeHolder brack_close