( ( ( Electric motor ) ( An ( electric motor ) ) ) ( , ( ( is ( ( a machine ) ( which ( ( converts ( electrical energy ) ) ( into ( mechanical ( ( -LRB- ( ( ( rotational or ) kinetic ) -RRB- ) ) energy ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (NNP Electric) (NN motor)) (NP (DT An) (JJ electric) (NN motor))) (, ,) (VP (VBZ is) (NP (NP (DT a) (NN machine)) (SBAR (WHNP (WDT which)) (S (VP (VBZ converts) (NP (JJ electrical) (NN energy)) (PP (IN into) (NP (NNP mechanical) (PRN (-LRB- -LRB-) (NP (JJ rotational) (CC or) (JJ kinetic)) (-RRB- -RRB-)) (NN energy)))))))) (. .)))
Electric motor An electric motor , is a machine which converts electrical energy into mechanical (rotational or kinetic) energy.
(ROOT (S (NP (NNP Electric) (NNS motors)) (VP (VB transform) (NP (JJ electrical) (NN energy)) (PP (IN into) (NP (JJ kinetic) (NN energy)))) (. .)))
Electric motors transform electrical energy into kinetic energy.