turns in a collectively stellar performance 
(ROOT (S (VP (VBZ turns) (PRT (IN in)) (NP (DT a) (ADJP (RB collectively) (JJ stellar)) (NN performance)))))
(ROOT (S (VP (VBZ ) (PRT (IN )) (NP (DT ) (ADJP (RB ) (JJ )) (NN )))))