What is the maximum area (in acres) of the Knockacullen townland?
CREATE TABLE table_30121046_1 (
    area__acres__ INTEGER,
    townland VARCHAR
)
SELECT MAX(area__acres__) FROM table_30121046_1 WHERE townland = "Knockacullen"
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 maximum area (in acres) of the Knockacullen townland? ### Input: CREATE TABLE table_30121046_1 (
    area__acres__ INTEGER,
    townland VARCHAR
) ### Response: SELECT MAX(area__acres__) FROM table_30121046_1 WHERE townland = "Knockacullen"