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_39 (surface VARCHAR, opponents VARCHAR)
  ### Question:
  What is Surface, when Opponents is "Daniel Nestor Sandon Stolle"?
  ### Answer:
  SELECT surface FROM table_name_39 WHERE opponents = "daniel nestor sandon stolle"