The Audubon Nature Centers are among the most serene and pristine places on Earth.
( ( The ( Audubon ( Nature Centers ) ) ) ( ( are ( among ( ( the ( ( most ( ( serene and ) pristine ) ) places ) ) ( on Earth ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Audubon) (NNP Nature) (NNPS Centers)) (VP (VBP are) (PP (IN among) (NP (NP (DT the) (ADJP (RBS most) (JJ serene) (CC and) (JJ pristine)) (NNS places)) (PP (IN on) (NP (NNP Earth)))))) (. .)))
Audubon Nature Centers only exist because of continued Congressional backing.
( ( Audubon ( Nature Centers ) ) ( only ( ( exist ( because ( of ( continued ( Congressional backing ) ) ) ) ) . ) ) )
(ROOT (S (NP (NNP Audubon) (NNP Nature) (NNPS Centers)) (ADVP (RB only)) (VP (VBP exist) (PP (RB because) (IN of) (NP (VBN continued) (JJ Congressional) (NN backing)))) (. .)))