dark and unrepentant , this excursion into the epicenter of percolating mental instability is not easily dismissed or forgotten . 
(ROOT (S (S (ADJP (JJ dark) (CC and) (JJ unrepentant))) (, ,) (NP (NP (DT this) (NN excursion)) (PP (IN into) (NP (NP (DT the) (NN epicenter)) (PP (IN of) (NP (VBG percolating) (JJ mental) (NN instability)))))) (VP (VBZ is) (RB not) (ADVP (RB easily)) (VP (VBN dismissed) (CC or) (VBN forgotten))) (. .)))
(ROOT (S (S (ADJP (JJ ) (CC ) (JJ ))) (, ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (VBG ) (JJ ) (NN )))))) (VP (VBZ ) (RB ) (ADVP (RB )) (VP (VBN ) (CC ) (VBN ))) (. )))