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_21781578_2 (season_no VARCHAR, production_code VARCHAR)
  ### Question:
  What was the season number for production code E2110?
  ### Answer:
  SELECT season_no FROM table_21781578_2 WHERE production_code = "E2110"