( ( Potential energy ) ( ( is ( energy ( stored ( in ( an object ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Potential) (NN energy)) (VP (VBZ is) (NP (NP (NN energy)) (VP (VBN stored) (PP (IN in) (NP (DT an) (NN object)))))) (. .)))
Potential energy is energy stored in an object.
(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)))))))))) (. .)))