what is the only year that the seattle sounders qualified for the open cup ?
CREATE TABLE table_204_463 (
    id number,
    "year" number,
    "division" number,
    "league" text,
    "regular season" text,
    "playoffs" text,
    "open cup" text
)
SELECT "year" FROM table_204_463 WHERE "open cup" <> 'did not qualify'
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: what is the only year that the seattle sounders qualified for the open cup ? ### Input: CREATE TABLE table_204_463 (
    id number,
    "year" number,
    "division" number,
    "league" text,
    "regular season" text,
    "playoffs" text,
    "open cup" text
) ### Response: SELECT "year" FROM table_204_463 WHERE "open cup" <> 'did not qualify'