What Attack has a 30,00% GERB?
CREATE TABLE table_6490 (
    "Source" text,
    "Date" text,
    "GERB" text,
    "Attack" text,
    "Blue Coalition" text
)
SELECT "Attack" FROM table_6490 WHERE "GERB" = '30,00%'
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 Attack has a 30,00% GERB? ### Input: CREATE TABLE table_6490 (
    "Source" text,
    "Date" text,
    "GERB" text,
    "Attack" text,
    "Blue Coalition" text
) ### Response: SELECT "Attack" FROM table_6490 WHERE "GERB" = '30,00%'