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_1140103_6 (date VARCHAR, circuit VARCHAR)
  ### Question:
  How many dates have silverstone circuit
  ### Answer:
  SELECT COUNT(date) FROM table_1140103_6 WHERE circuit = "Silverstone"