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_21313327_1 (us_viewers__millions_ VARCHAR, written_by VARCHAR)
  ### Question:
  when the writer is Brad Kern, how many u.s viewers (in millions) had the episode?
  ### Answer:
  SELECT us_viewers__millions_ FROM table_21313327_1 WHERE written_by = "Brad Kern"