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_30 (games INTEGER, win_percentage VARCHAR, Pwin_percentage VARCHAR, — VARCHAR, term_ VARCHAR, c_ VARCHAR)
  ### Question:
  What is the sum of the game with a PWin% of —, Term [c] of 1987–1988, and Win% less than 0.506?
  ### Answer:
  SELECT SUM(games) FROM table_name_30 WHERE Pwin_percentage = — AND term_[c_] = "1987–1988" AND win_percentage < 0.506