( ( Electrical energy ) ( ( is ( ( a kind ) ( of ( kinetic energy ) ) ) ) . ) )
(ROOT (S (NP (JJ Electrical) (NN energy)) (VP (VBZ is) (NP (NP (DT a) (NN kind)) (PP (IN of) (NP (JJ kinetic) (NN energy))))) (. .)))
Electrical energy is a kind of kinetic energy.
(ROOT (S (NP (JJ Thermal) (NN energy)) (VP (VBZ constitutes) (NP (NP (DT the) (JJ total) (JJ kinetic) (NN energy)) (PP (IN of) (NP (PDT all) (DT the) (NNS atoms) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (DT an) (NN object))))))))) (. .)))