Complex sentence: Pope John Paul II continued to use the term Co-Redemptrix on several occasions, but he did not issue an encyclical on it-yet he discussed the related (but not equivalent) concept of Mediatrix in his encyclical Redemptoris Mater.
Split into simpler sentences: Pope John Paul II continued to use the term Co-Redemptrix on several occasions, but he did not issue an encyclical on it. Yet he discussed the related (but not equivalent) concept of Mediatrix in his encyclical Redemptoris Mater.