how many total failed attempts occurred at makalu and cho oyu ?
CREATE TABLE table_204_570 (
    id number,
    "rank" number,
    "mountain" text,
    "height (m)" number,
    "height (ft)" number,
    "range" text,
    "coordinates" text,
    "prominence (m)" number,
    "parent mountain" text,
    "first ascent" number,
    "ascents (failed attempts) bef.2004" text
)
SELECT SUM("ascents (failed attempts) bef.2004") FROM table_204_570 WHERE "mountain" IN ('makalu', 'cho oyu')
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: how many total failed attempts occurred at makalu and cho oyu ? ### Input: CREATE TABLE table_204_570 (
    id number,
    "rank" number,
    "mountain" text,
    "height (m)" number,
    "height (ft)" number,
    "range" text,
    "coordinates" text,
    "prominence (m)" number,
    "parent mountain" text,
    "first ascent" number,
    "ascents (failed attempts) bef.2004" text
) ### Response: SELECT SUM("ascents (failed attempts) bef.2004") FROM table_204_570 WHERE "mountain" IN ('makalu', 'cho oyu')