name the office holder with predecessor as james thomas and office in list of the first lords of the admiralty ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_predecessor dbr_James_Thomas,_1st_Viscount_Cilcennin sep_dot var_uri dbp_office dbr_List_of_the_First_Lords_of_the_Admiralty sep_dot var_uri a dbo_OfficeHolder brack_close