Which champion has a Group Stage LLWS in Russellville?
CREATE TABLE table_13251 (
    "Year" real,
    "Champion" text,
    "City" text,
    "LLWS" text,
    "Record" text
)
SELECT "Champion" FROM table_13251 WHERE "LLWS" = 'group stage' AND "City" = 'russellville'
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: Which champion has a Group Stage LLWS in Russellville? ### Input: CREATE TABLE table_13251 (
    "Year" real,
    "Champion" text,
    "City" text,
    "LLWS" text,
    "Record" text
) ### Response: SELECT "Champion" FROM table_13251 WHERE "LLWS" = 'group stage' AND "City" = 'russellville'