( ( using ( contour lines ) ) ( , ( ( relief features ) ( ( can ( be ( profiled ( into ( a ( three-dimensional perspective ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBG using) (NP (NN contour) (NNS lines)))) (, ,) (NP (NN relief) (NNS features)) (VP (MD can) (VP (VB be) (VP (VBN profiled) (PP (IN into) (NP (DT a) (JJ three-dimensional) (NN perspective)))))) (. .)))
using contour lines, relief features can be profiled into a three-dimensional perspective.
(ROOT (S (NP (NNP Contour) (NNS lines)) (VP (VBP show) (NP (NP (DT the) (JJ three-dimensional) (NN shape)) (PP (IN of) (NP (NN land))))) (. .)))