without being forceful , sad without being shrill 
(ROOT (S (PP (IN without) (S (VP (VBG being) (ADJP (JJ forceful))))) (, ,) (ADJP (JJ sad) (PP (IN without) (S (VP (VBG being) (ADJP (JJ shrill))))))))
(ROOT (S (PP (IN ) (S (VP (VBG ) (ADJP (JJ ))))) (, ) (ADJP (JJ ) (PP (IN ) (S (VP (VBG ) (ADJP (JJ ))))))))