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_23944006_4 (surface VARCHAR, score VARCHAR)
  ### Question:
  Name the number of surfaces for  4-6, 2-6
  ### Answer:
  SELECT COUNT(surface) FROM table_23944006_4 WHERE score = "4-6, 2-6"