name the office holder with successor as george lucas and child as margaret jay ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_child dbr_Margaret_Jay,_Baroness_Jay_of_Paddington sep_dot var_uri dbp_successor dbr_George_Lucas,_1st_Baron_Lucas_of_Chilworth sep_dot var_uri a dbo_OfficeHolder brack_close