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_15 (goals_against INTEGER, club VARCHAR, points VARCHAR)
  ### Question:
  Which Goals against have a Club of cd castellón, and Points smaller than 24?
  ### Answer:
  SELECT AVG(goals_against) FROM table_name_15 WHERE club = "cd castellón" AND points < 24