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_42 (opponent VARCHAR, surface VARCHAR)
  ### Question:
  What person was played against when the playing surface was hard?
  ### Answer:
  SELECT opponent FROM table_name_42 WHERE surface = "hard"