the human cost of the conflict that came to define a generation 
(ROOT (NP (NP (DT the) (JJ human) (NN cost)) (PP (IN of) (NP (NP (DT the) (NN conflict)) (SBAR (WHNP (WDT that)) (S (VP (VBD came) (S (VP (TO to) (VP (VB define) (NP (DT a) (NN generation))))))))))))
(ROOT (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (SBAR (WHNP (WDT )) (S (VP (VBD ) (S (VP (TO ) (VP (VB ) (NP (DT ) (NN ))))))))))))