it 's a compelling and horrifying story 
(ROOT (S (NP (PRP it)) (VP (VBZ 's) (NP (DT a) (ADJP (JJ compelling) (CC and) (JJ horrifying)) (NN story)))))
(ROOT (S (NP (PRP )) (VP (VBZ ) (NP (DT ) (ADJP (JJ ) (CC ) (JJ )) (NN )))))