( ( ( ( Another ( Potential Energy ) ) : ) ( Elastic Energy ) ) . )
(ROOT (NP (NP (DT Another) (JJ Potential) (NN Energy)) (: :) (NP (NNP Elastic) (NNP Energy)) (. .)))
Another Potential Energy: Elastic Energy .
(ROOT (S (NP (DT The) (ADJP (NN term) (JJ elastic)) (JJ potential) (NN energy)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (S (NP (JJ potential) (NN energy)) (ADJP (JJ due) (PP (TO to) (NP (NP (DT an) (NN object) (POS 's)) (NN shape)))))))))) (. .)))