a bit of heart and unsettling subject matter 
(ROOT (NP (NP (NP (DT a) (NN bit)) (PP (IN of) (NP (NN heart)))) (CC and) (NP (JJ unsettling) (NN subject) (NN matter))))
(ROOT (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN )))) (CC ) (NP (JJ ) (NN ) (NN ))))