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