Who was the visiting team on December 17?
CREATE TABLE table_56712 (
    "Date" text,
    "Visitor" text,
    "Score" text,
    "Home" text,
    "Leading scorer" text,
    "Attendance" real,
    "Record" text
)
SELECT "Visitor" FROM table_56712 WHERE "Date" = 'december 17'
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: Who was the visiting team on December 17? ### Input: CREATE TABLE table_56712 (
    "Date" text,
    "Visitor" text,
    "Score" text,
    "Home" text,
    "Leading scorer" text,
    "Attendance" real,
    "Record" text
) ### Response: SELECT "Visitor" FROM table_56712 WHERE "Date" = 'december 17'