what is the date in 1986?
CREATE TABLE table_31539 (
    "Year" real,
    "Competition" text,
    "Date" text,
    "Location" text,
    "Score" text,
    "Result" text
)
SELECT "Date" FROM table_31539 WHERE "Year" = '1986'
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 in 1986? ### Input: CREATE TABLE table_31539 (
    "Year" real,
    "Competition" text,
    "Date" text,
    "Location" text,
    "Score" text,
    "Result" text
) ### Response: SELECT "Date" FROM table_31539 WHERE "Year" = '1986'