that 's sustained through the surprisingly somber conclusion 
(ROOT (S (NP (DT that)) (VP (VBZ 's) (VP (VBN sustained) (PP (IN through) (NP (DT the) (ADJP (RB surprisingly) (JJ somber)) (NN conclusion)))))))
(ROOT (S (NP (DT )) (VP (VBZ ) (VP (VBN ) (PP (IN ) (NP (DT ) (ADJP (RB ) (JJ )) (NN )))))))