(S (S (BASENP (DT The) (NN property)) (VP (VBZ is) (VP (VBG being) (VP (VBN preserved) (PP (IN by) (NP (BASENP (DT the) (NP (S (VP (NNP Save) (BASENP (NNP Mount) (NNP Diablo)))) (BASENP (NN conservation) (NN group)))) (VP (VBG operating) (PP (IN in) (BASENP (DT the) (NNP Mount) (NNP Diablo) (NNP State) (NNP Park)))))))))) (PERIOD .))