who has spent more time as nwa world heavyyweight champion , gene kiniski or ric flair ?
CREATE TABLE table_202_45 (
    id number,
    "rank" number,
    "wrestler" text,
    "no. of reigns" number,
    "combined days" number
)
SELECT "wrestler" FROM table_202_45 WHERE "wrestler" IN ('gene kiniski', 'ric flair') ORDER BY "combined days" DESC LIMIT 1
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: who has spent more time as nwa world heavyyweight champion , gene kiniski or ric flair ? ### Input: CREATE TABLE table_202_45 (
    id number,
    "rank" number,
    "wrestler" text,
    "no. of reigns" number,
    "combined days" number
) ### Response: SELECT "wrestler" FROM table_202_45 WHERE "wrestler" IN ('gene kiniski', 'ric flair') ORDER BY "combined days" DESC LIMIT 1