Complex sentence: In 1992, the Association revised its recommendations on recreational space to include the "Children's Playing Space Standard" aspect of the "Six Acre Standard"-part of the recommendation then was a general statement of the need for adequate children's playing space.
Split into simpler sentences: In 1992, the Association revised its recommendations on recreational space to include the "Children's Playing Space Standard" aspect of the "Six Acre Standard". Part of the recommendation then was a general statement of the need for adequate children's playing space.