What's the origin for the country abbreviated atf?
CREATE TABLE table_57607 (
    "Country" text,
    "Abbreviation" text,
    "Assets US$Billion" text,
    "Inception" text,
    "Origin" text
)
SELECT "Origin" FROM table_57607 WHERE "Abbreviation" = 'atf'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What's the origin for the country abbreviated atf? ### Input: CREATE TABLE table_57607 (
    "Country" text,
    "Abbreviation" text,
    "Assets US$Billion" text,
    "Inception" text,
    "Origin" text
) ### Response: SELECT "Origin" FROM table_57607 WHERE "Abbreviation" = 'atf'