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_55 (launched VARCHAR, name VARCHAR)
### Question:
What is the launch date for the Ushio dd-54?
### Answer:
SELECT launched FROM table_name_55 WHERE name = "ushio dd-54"