name the office holder whose predecessor is james thomas and successor is kenneth baker ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_predecessor dbr_James_Thomas,_1st_Viscount_Cilcennin sep_dot var_uri dbp_successor dbr_Kenneth_Baker,_Baron_Baker_of_Dorking sep_dot var_uri a dbo_OfficeHolder brack_close