( Definition ( of ( ( Spring ( Potential Energy ) ) ( -LRB- ( ( Elastic ( Potential Energy ) ) -RRB- ) ) ) ) )
(ROOT (NP (NP (NNP Definition)) (PP (IN of) (NP (NP (NNP Spring) (NNP Potential) (NNP Energy)) (PRN (-LRB- -LRB-) (NP (NNP Elastic) (NNP Potential) (NNP Energy)) (-RRB- -RRB-))))))
Definition of Spring Potential Energy   (Elastic Potential Energy)
(ROOT (S (S (VP (VBG Changing) (NP (NP (DT the) (NN shape)) (PP (IN of) (NP (DT an) (JJ elastic) (NN material)))))) (VP (VBZ gives) (NP (PRP it)) (NP (JJ potential) (NN energy))) (. .)))