Who was replaced on 11 July?
CREATE TABLE table_21559 (
    "Team" text,
    "Outgoing manager" text,
    "Manner of departure" text,
    "Date of vacancy" text,
    "Replaced by" text,
    "Date of appointment" text
)
SELECT "Replaced by" FROM table_21559 WHERE "Date of appointment" = '11 July'
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: Who was replaced on 11 July? ### Input: CREATE TABLE table_21559 (
    "Team" text,
    "Outgoing manager" text,
    "Manner of departure" text,
    "Date of vacancy" text,
    "Replaced by" text,
    "Date of appointment" text
) ### Response: SELECT "Replaced by" FROM table_21559 WHERE "Date of appointment" = '11 July'