( ( ( ( ( Energy ( ( can not ) ( be ( ( created or ) destroyed ) ) ) ) , ) but ) ( ( ( the form ) ( of Energy ) ) ( can ( be changed ) ) ) ) . )
(ROOT (S (S (NP (NNP Energy)) (VP (MD can) (RB not) (VP (VB be) (VP (VBN created) (CC or) (VBN destroyed))))) (, ,) (CC but) (S (NP (NP (DT the) (NN form)) (PP (IN of) (NP (NNP Energy)))) (VP (MD can) (VP (VB be) (VP (VBN changed))))) (. .)))
Energy can not be created or destroyed, but the form of Energy can be changed.
(ROOT (S (NP (NNP Energy) (PRP it)) (VP (MD can) (RB not) (VP (VB be) (VP (VBN destroyed)))) (. .)))