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_name_12 (valvetrain VARCHAR, model VARCHAR)
  ### Question:
  What is the Valvetrain of the Diesel Engines Model?
  ### Answer:
  SELECT valvetrain FROM table_name_12 WHERE model = "diesel engines"