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_1315616_1 (date VARCHAR, mediator VARCHAR, red_team_host VARCHAR)
  ### Question:
  On what date was Keiichi Ubukata the mediator and Mitsuko Mori the red team host?
  ### Answer:
  SELECT date FROM table_1315616_1 WHERE mediator = "Keiichi Ubukata" AND red_team_host = "Mitsuko Mori"