in creating the layered richness of the imagery in this chiaroscuro of madness and light 
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(ROOT (PP (IN ) (S (VP (VBG ) (NP (NP (DT ) (VBN ) (NN )) (PP (IN ) (NP (DT ) (NN )))) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ) (CC ) (NN )))))))))