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 church (open_date VARCHAR)
  ### Question:
  Show the opening year in whcih at least two churches opened.
  ### Answer:
  SELECT open_date FROM church GROUP BY open_date HAVING COUNT(*) >= 2