Which tournament has hard as the surface and apr. 12, 1998 as the date?
CREATE TABLE table_name_78 (
    tournament VARCHAR,
    surface VARCHAR,
    date VARCHAR
)
SELECT tournament FROM table_name_78 WHERE surface = "hard" AND date = "apr. 12, 1998"
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 tournament has hard as the surface and apr. 12, 1998 as the date? ### Input: CREATE TABLE table_name_78 (
    tournament VARCHAR,
    surface VARCHAR,
    date VARCHAR
) ### Response: SELECT tournament FROM table_name_78 WHERE surface = "hard" AND date = "apr. 12, 1998"