of tenderness required to give this comic slugfest some heart 
(ROOT (PP (IN of) (NP (NP (NN tenderness)) (VP (VBN required) (S (VP (TO to) (VP (VB give) (NP (DT this) (NN comic) (NN slugfest)) (NP (DT some) (NN heart)))))))))
(ROOT (PP (IN ) (NP (NP (NN )) (VP (VBN ) (S (VP (TO ) (VP (VB ) (NP (DT ) (NN ) (NN )) (NP (DT ) (NN )))))))))