What is the engine for the bmw motorsport entrant with 123 points before 2004?
CREATE TABLE table_70388 (
    "Year" real,
    "Entrant" text,
    "Class" text,
    "Chassis" text,
    "Engine" text,
    "Tyres" text,
    "Rank" text,
    "Points" real
)
SELECT "Engine" FROM table_70388 WHERE "Year" < '2004' AND "Entrant" = 'bmw motorsport' AND "Points" = '123'
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 engine for the bmw motorsport entrant with 123 points before 2004? ### Input: CREATE TABLE table_70388 (
    "Year" real,
    "Entrant" text,
    "Class" text,
    "Chassis" text,
    "Engine" text,
    "Tyres" text,
    "Rank" text,
    "Points" real
) ### Response: SELECT "Engine" FROM table_70388 WHERE "Year" < '2004' AND "Entrant" = 'bmw motorsport' AND "Points" = '123'