's extremely hard to relate to any of the characters 
(ROOT (S (VP (VBZ 's) (ADJP (RB extremely) (JJ hard)) (S (VP (TO to) (VP (VB relate) (PP (IN to) (NP (NP (DT any)) (PP (IN of) (NP (DT the) (NNS characters)))))))))))
(ROOT (S (VP (VBZ ) (ADJP (RB ) (JJ )) (S (VP (TO ) (VP (VB ) (PP (IN ) (NP (NP (DT )) (PP (IN ) (NP (DT ) (NNS )))))))))))