How many heavy attacks did the 450 Luftflotte 2 conduct?
CREATE TABLE table_56762 (
    "Month/Year" text,
    "Day Sorties (losses)" text,
    "Night Sorties (Losses)" text,
    "Luftflotte 2 sorties" real,
    "Luftflotte 3 sorties" real,
    "Major attacks" text,
    "Heavy attacks" real
)
SELECT COUNT("Heavy attacks") FROM table_56762 WHERE "Luftflotte 2 sorties" = '450'
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: How many heavy attacks did the 450 Luftflotte 2 conduct? ### Input: CREATE TABLE table_56762 (
    "Month/Year" text,
    "Day Sorties (losses)" text,
    "Night Sorties (Losses)" text,
    "Luftflotte 2 sorties" real,
    "Luftflotte 3 sorties" real,
    "Major attacks" text,
    "Heavy attacks" real
) ### Response: SELECT COUNT("Heavy attacks") FROM table_56762 WHERE "Luftflotte 2 sorties" = '450'