smith finds amusing juxtapositions that justify his exercise . 
(ROOT (S (NP (NNP smith)) (VP (VBZ finds) (NP (NP (JJ amusing) (NNS juxtapositions)) (SBAR (WHNP (WDT that)) (S (VP (VBP justify) (NP (PRP$ his) (NN exercise))))))) (. .)))
(ROOT (S (NP (NNP )) (VP (VBZ ) (NP (NP (JJ ) (NNS )) (SBAR (WHNP (WDT )) (S (VP (VBP ) (NP (PRP$ ) (NN ))))))) (. )))