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_57 (surface VARCHAR, round VARCHAR, player VARCHAR)
  ### Question:
  Which Surface has a Round of 4th round, and a Player of maria sharapova?
  ### Answer:
  SELECT surface FROM table_name_57 WHERE round = "4th round" AND player = "maria sharapova"