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_14981555_3 (jockey VARCHAR, date VARCHAR)
  ### Question:
  How many different jockeys ran on 17 Feb 2007?
  ### Answer:
  SELECT COUNT(jockey) FROM table_14981555_3 WHERE date = "17 Feb 2007"