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