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_20 (goals_against INTEGER, points_1 VARCHAR, goals_for VARCHAR)
  ### Question:
  What is the average goals against for teams with more than 56 goals for and exactly 50 points?
  ### Answer:
  SELECT AVG(goals_against) FROM table_name_20 WHERE points_1 = "50" AND goals_for > 56