a bit of a downer and a little 
(ROOT (NP (NP (NP (DT a) (NN bit)) (PP (IN of) (NP (DT a) (NN downer)))) (CC and) (NP (DT a) (JJ little))))
(ROOT (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN )))) (CC ) (NP (DT ) (JJ ))))