( Adaptations ( result ( from ( ( a trait ) ( being ( ( favored either ) ( for ( ( survival or ) reproduction ) ) ) ) ) ) ) )
(ROOT (S (NP (NNS Adaptations)) (VP (VBP result) (PP (IN from) (NP (NP (DT a) (NN trait)) (VP (VBG being) (VP (VBN favored) (ADVP (RB either)) (PP (IN for) (NP (NN survival) (CC or) (NN reproduction))))))))))
Adaptations result from a trait being favored either for survival or reproduction
(ROOT (S (NP (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-)) (NP (JJ favorable) (NN trait))) (VP (VBZ is) (NP (DT an) (NN adaptation))) (. .)))
A(n) favorable trait is an adaptation.