by even the corniest and most hackneyed contrivances 
(ROOT (PP (IN by) (NP (RB even) (DT the) (ADJP (ADJP (JJS corniest)) (CC and) (ADJP (RBS most) (JJ hackneyed))) (NNS contrivances))))
(ROOT (PP (IN ) (NP (RB ) (DT ) (ADJP (ADJP (JJS )) (CC ) (ADJP (RBS ) (JJ ))) (NNS ))))