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_name_31 (completed VARCHAR, laid_down VARCHAR)
### Question:
when was the ship completed that was laid down on 23 march 1926?
### Answer:
SELECT completed FROM table_name_31 WHERE laid_down = "23 march 1926"