To save this precious, historical land from developers, Audubon worked with a local bank and purchased this land for preservation.
( ( To ( ( save ( this ( precious ( , ( historical land ) ) ) ) ) ( from developers ) ) ) ( , ( Audubon ( ( ( ( worked ( with ( a ( local bank ) ) ) ) and ) ( ( purchased ( this land ) ) ( for preservation ) ) ) . ) ) ) )
(ROOT (S (S (VP (TO To) (VP (VB save) (NP (DT this) (JJ precious) (, ,) (JJ historical) (NN land)) (PP (IN from) (NP (NNS developers)))))) (, ,) (NP (NNP Audubon)) (VP (VP (VBD worked) (PP (IN with) (NP (DT a) (JJ local) (NN bank)))) (CC and) (VP (VBD purchased) (NP (DT this) (NN land)) (PP (IN for) (NP (NN preservation))))) (. .)))
Audubon didn't purchase the land.
( Audubon ( ( ( did n't ) ( purchase ( the land ) ) ) . ) )
(ROOT (S (NP (NNP Audubon)) (VP (VBD did) (RB n't) (VP (VB purchase) (NP (DT the) (NN land)))) (. .)))