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_25716399_1 (written_by VARCHAR, original_air_date VARCHAR)
  ### Question:
  Who wrote the episode where the original air date is july20,2007?
  ### Answer:
  SELECT written_by FROM table_25716399_1 WHERE original_air_date = "July20,2007"