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 products (product_type_code VARCHAR)
  ### Question:
  Show the product type codes which have at least two products.
  ### Answer:
  SELECT product_type_code FROM products GROUP BY product_type_code HAVING COUNT(*) >= 2