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 (constructor VARCHAR, race_name VARCHAR)
  ### Question:
  How many constructors are listed for the XVI BRDC international trophy race
  ### Answer:
  SELECT COUNT(constructor) FROM table_1140103_6 WHERE race_name = "XVI BRDC International Trophy"