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  CREATE TABLE table_name_31 (introduced VARCHAR, withdrawn VARCHAR)
  ### Question:
  What date was introduced where it was withdrawn 1955?
  ### Answer:
  SELECT introduced FROM table_name_31 WHERE withdrawn = "1955"