bogs down in a surfeit of characters and unnecessary 
(ROOT (S (VP (VBZ bogs) (PRT (RP down)) (PP (IN in) (NP (NP (DT a) (NN surfeit)) (PP (IN of) (NP (NP (NNS characters)) (CC and) (JJ unnecessary))))))))
(ROOT (S (VP (VBZ ) (PRT (RP )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (NNS )) (CC ) (JJ ))))))))