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_36 (date VARCHAR, tournament VARCHAR, surface VARCHAR, round VARCHAR)
  ### Question:
  Name the date for grass surface for quarterfinal at the nsw building society open tournament
  ### Answer:
  SELECT date FROM table_name_36 WHERE surface = "grass" AND round = "quarterfinal" AND tournament = "nsw building society open"