is very much of a mixed bag , with enough negatives 
(ROOT (VP (VBZ is) (NP (ADJP (RB very) (JJ much)) (PP (IN of) (NP (DT a) (VBN mixed) (NN bag)))) (, ,) (PP (IN with) (NP (JJ enough) (NNS negatives)))))
(ROOT (VP (VBZ ) (NP (ADJP (RB ) (JJ )) (PP (IN ) (NP (DT ) (VBN ) (NN )))) (, ) (PP (IN ) (NP (JJ ) (NNS )))))