( ( ( ( Field study ) ( of ( ( ( ( ( ( ( ( the structure ) , ) stratigraphy ) , ) rocks ) , ) and ) paleontology ) ) ) ( of ( ( the ( Paleozoic System ) ) ( of ( the ( Appalachian geosyncline ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Field) (NN study)) (PP (IN of) (NP (NP (DT the) (NN structure)) (, ,) (NP (NN stratigraphy)) (, ,) (NP (NNS rocks)) (, ,) (CC and) (NP (NN paleontology)))) (PP (IN of) (NP (NP (DT the) (JJ Paleozoic) (NN System)) (PP (IN of) (NP (DT the) (NNP Appalachian) (NN geosyncline))))) (. .)))
Field study of the structure, stratigraphy, rocks, and paleontology of the Paleozoic System of the Appalachian geosyncline.
(ROOT (S (NP (PRP We)) (VP (VBP call) (NP (NP (DT the) (NN study)) (PP (IN of) (NP (NN rock) (NNS layers)))) (ADVP (RB stratigraphy))) (. .)))