Which FA Cup goals have a League goals of 18, and a Club of sheffield united?
CREATE TABLE table_9696 (
    "Scorer" text,
    "Club" text,
    "League goals" text,
    "FA Cup goals" real,
    "League Cup goals" real,
    "Total" real
)
SELECT MAX("FA Cup goals") FROM table_9696 WHERE "League goals" = '18' AND "Club" = 'sheffield united'
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 FA Cup goals have a League goals of 18, and a Club of sheffield united? ### Input: CREATE TABLE table_9696 (
    "Scorer" text,
    "Club" text,
    "League goals" text,
    "FA Cup goals" real,
    "League Cup goals" real,
    "Total" real
) ### Response: SELECT MAX("FA Cup goals") FROM table_9696 WHERE "League goals" = '18' AND "Club" = 'sheffield united'