Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_291768_1 (shipyard VARCHAR, commissioned VARCHAR)
### Question:
which vessel area was called for on november 30, 1970
### Answer:
SELECT shipyard FROM table_291768_1 WHERE commissioned = "November 30, 1970"