text: 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_12592074_1 (namesake VARCHAR, commissioned_or_completed_ VARCHAR, _ VARCHAR)
  ### Question:
  What is the namesake of the ship that was commissioned or completed(*) 16 april 1864?
  ### Answer:
  SELECT namesake FROM table_12592074_1 WHERE commissioned_or_completed_ * _ = "16 April 1864"