( ( In evolution ) ( , ( ( ( ( ( ( having ( traits ( that ( help ( one survive ) ) ) ) ) ( is ( very important ) ) ) , ) but ) ( it ( ( is ( only important ) ) ( so ( that ( one ( can ( ( ( ( reproduce and ) pass ) ( those traits ) ) ( to ( the ( next generation ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (NN evolution))) (, ,) (S (S (VP (VBG having) (NP (NP (NNS traits)) (SBAR (WHNP (WDT that)) (S (VP (VBP help) (SBAR (S (NP (PRP one)) (VP (VBP survive)))))))))) (VP (VBZ is) (ADJP (RB very) (JJ important)))) (, ,) (CC but) (S (NP (PRP it)) (VP (VBZ is) (ADJP (RB only) (JJ important)) (SBAR (RB so) (IN that) (S (NP (PRP one)) (VP (MD can) (VP (VB reproduce) (CC and) (VB pass) (NP (DT those) (NNS traits)) (PP (TO to) (NP (DT the) (JJ next) (NN generation))))))))) (. .)))
In evolution, having traits that help one survive is very important, but it is only important so that one can reproduce and pass those traits to the next generation.
(ROOT (S (NP (NNP Evolution)) (VP (VBZ occurs) (SBAR (WHADVP (WRB when)) (S (NP (NNS organisms)) (VP (VB acquire) (CC and) (VB pass) (PP (IN on) (NP (JJ new) (NNS traits))) (PP (IN from) (NP (NP (CD one) (NN generation)) (PP (TO to) (NP (DT the) (JJ next) (NN generation))))))))) (. .)))