What is the source of the move from Port Vale?
CREATE TABLE table_14630 (
    "Name" text,
    "Country" text,
    "Type" text,
    "Moving from" text,
    "Transfer window" text,
    "Ends" real,
    "Transfer fee" text,
    "Source" text
)
SELECT "Source" FROM table_14630 WHERE "Moving from" = 'port vale'
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 source of the move from Port Vale? ### Input: CREATE TABLE table_14630 (
    "Name" text,
    "Country" text,
    "Type" text,
    "Moving from" text,
    "Transfer window" text,
    "Ends" real,
    "Transfer fee" text,
    "Source" text
) ### Response: SELECT "Source" FROM table_14630 WHERE "Moving from" = 'port vale'