Which event was in round 1, resulted in a win, and a record of 15-4?
CREATE TABLE table_56533 (
    "Res." text,
    "Record" text,
    "Opponent" text,
    "Method" text,
    "Event" text,
    "Round" real,
    "Time" text,
    "Location" text
)
SELECT "Event" FROM table_56533 WHERE "Round" = '1' AND "Res." = 'win' AND "Record" = '15-4'
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 event was in round 1, resulted in a win, and a record of 15-4? ### Input: CREATE TABLE table_56533 (
    "Res." text,
    "Record" text,
    "Opponent" text,
    "Method" text,
    "Event" text,
    "Round" real,
    "Time" text,
    "Location" text
) ### Response: SELECT "Event" FROM table_56533 WHERE "Round" = '1' AND "Res." = 'win' AND "Record" = '15-4'