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 Invoices (order_id VARCHAR)
  ### Question:
  Show the order ids and the number of invoices for each order.
  ### Answer:
  SELECT order_id, COUNT(*) FROM Invoices GROUP BY order_id