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_29054902_1 (production_code VARCHAR, us_viewers__million_ VARCHAR)
  ### Question:
  What is the production code of the episode that was watched by 3.81 million U.S. viewers? 
  ### Answer:
  SELECT production_code FROM table_29054902_1 WHERE us_viewers__million_ = "3.81"