( ( ( Forms ( of Energy ) ) : ) ( ( Motion ( , ( Heat ( , ( Light , ) ) ) ) ) Sound ) )
(ROOT (NP (NP (NP (NNS Forms)) (PP (IN of) (NP (NNP Energy)))) (: :) (NP (NP (NNP Motion) (, ,) (NNP Heat) (, ,) (NNP Light) (, ,)) (NP (NNP Sound)))))
Forms of Energy: Motion, Heat, Light, Sound
(ROOT (S (NP (NP (NNP Heat)) (, ,) (NP (NN light)) (, ,) (CC and) (NP (NN sound))) (VP (VBP are) (NP (NP (DT all) (JJ different) (NNS forms)) (PP (IN of) (NP (NN energy))))) (. .)))