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_27833186_1 (rider_names VARCHAR, location VARCHAR, horse_name VARCHAR)
  ### Question:
  Who were the winning riders of the championship in Euer Valley, CA and whose horse was Magic Sirocco?
  ### Answer:
  SELECT rider_names FROM table_27833186_1 WHERE location = "Euer Valley, CA" AND horse_name = "Magic Sirocco"