What is the date for a source of result and a place of iffendic?
CREATE TABLE table_49575 (
    "Date" text,
    "Place" text,
    "Race winners" text,
    "GP winner" text,
    "Source" text
)
SELECT "Date" FROM table_49575 WHERE "Source" = 'result' AND "Place" = 'iffendic'
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 date for a source of result and a place of iffendic? ### Input: CREATE TABLE table_49575 (
    "Date" text,
    "Place" text,
    "Race winners" text,
    "GP winner" text,
    "Source" text
) ### Response: SELECT "Date" FROM table_49575 WHERE "Source" = 'result' AND "Place" = 'iffendic'