After a lifetime of trials, Donna not only earned her GED at Goodwill, she earned a job here. 
( ( After ( ( a lifetime ) ( of trials ) ) ) ( ( , ( Donna ( ( ( not only ) ( ( earned ( her GED ) ) ( at Goodwill ) ) ) , ) ) ) ( she ( ( ( earned ( a job ) ) here ) . ) ) ) )
(ROOT (S (PP (IN After) (NP (NP (DT a) (NN lifetime)) (PP (IN of) (NP (NNS trials))))) (PRN (, ,) (NP (NNP Donna)) (VP (ADVP (RB not) (RB only)) (VBD earned) (NP (PRP$ her) (NN GED)) (PP (IN at) (NP (NNP Goodwill)))) (, ,)) (NP (PRP she)) (VP (VBD earned) (NP (DT a) (NN job)) (ADVP (RB here))) (. .)))
Donna went through Goodwill to get her GED, but was still unemployed.
( Donna ( ( ( ( ( ( went ( through Goodwill ) ) ( to ( get ( her GED ) ) ) ) , ) but ) ( ( was still ) unemployed ) ) . ) )
(ROOT (S (NP (NNP Donna)) (VP (VP (VBD went) (PP (IN through) (NP (NNP Goodwill))) (S (VP (TO to) (VP (VB get) (NP (PRP$ her) (NN GED)))))) (, ,) (CC but) (VP (VBD was) (ADVP (RB still)) (ADJP (JJ unemployed)))) (. .)))