its unbelievable naïveté and arbitrary flashbacks 
(ROOT (NP (NP (PRP$ its) (JJ unbelievable) (NN naïveté)) (CC and) (NP (JJ arbitrary) (NNS flashbacks))))
(ROOT (NP (NP (PRP$ ) (JJ ) (NN )) (CC ) (NP (JJ ) (NNS ))))