name the office holder who has a child named harriet leveson-gower and resting place is derby cathedral ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_child dbr_Harriet_Leveson-Gower,_Countess_Granville sep_dot var_uri dbp_restingPlace dbr_Derby_Cathedral sep_dot var_uri a dbo_OfficeHolder brack_close