Who is the opponent on May 7?
CREATE TABLE table_56815 (
    "Date" text,
    "Opponent" text,
    "Score" text,
    "Loss" text,
    "Save" text
)
SELECT "Opponent" FROM table_56815 WHERE "Date" = 'may 7'
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 is the opponent on May 7? ### Input: CREATE TABLE table_56815 (
    "Date" text,
    "Opponent" text,
    "Score" text,
    "Loss" text,
    "Save" text
) ### Response: SELECT "Opponent" FROM table_56815 WHERE "Date" = 'may 7'