Gerth's prize-winning articles do not mention a CIA report concluding that U.S. security was not harmed by the 1996 accident review.
( ( ( Gerth 's ) ( prize-winning articles ) ) ( ( ( do not ) ( mention ( ( a ( CIA report ) ) ( concluding ( that ( ( U.S. security ) ( ( was not ) ( harmed ( by ( the ( 1996 ( accident review ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Gerth) (POS 's)) (JJ prize-winning) (NNS articles)) (VP (VBP do) (RB not) (VP (VB mention) (S (NP (DT a) (NNP CIA) (NN report)) (VP (VBG concluding) (SBAR (IN that) (S (NP (NNP U.S.) (NN security)) (VP (VBD was) (RB not) (VP (VBN harmed) (PP (IN by) (NP (DT the) (CD 1996) (NN accident) (NN review))))))))))) (. .)))
Gerth won prizes even though he didn't mention a CIA report.
( Gerth ( ( ( won prizes ) ( even ( though ( he ( ( did n't ) ( mention ( a ( CIA report ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Gerth)) (VP (VBD won) (NP (NNS prizes)) (SBAR (RB even) (IN though) (S (NP (PRP he)) (VP (VBD did) (RB n't) (VP (VB mention) (NP (DT a) (NNP CIA) (NN report))))))) (. .)))