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_56 (year INTEGER, partnering VARCHAR, championship VARCHAR)
  ### Question:
  What year was the US Open that had a partnering of Maikel Scheffers?
  ### Answer:
  SELECT SUM(year) FROM table_name_56 WHERE partnering = "maikel scheffers" AND championship = "us open"