( ( Called fission ) ( , ( ( the reaction ) ( ( is ( used ( in ( ( ( nuclear ( power plants ) ) and ) ( atomic bombs ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBN Called) (NP (NN fission)))) (, ,) (NP (DT the) (NN reaction)) (VP (VBZ is) (VP (VBN used) (PP (IN in) (NP (NP (JJ nuclear) (NN power) (NNS plants)) (CC and) (NP (JJ atomic) (NNS bombs)))))) (. .)))
Called fission, the reaction is used in nuclear power plants and atomic bombs.
(ROOT (S (NP (NNP Fission)) (VP (VBZ is) (NP (NP (NP (DT the) (JJ radioactive) (NN process)) (VP (VBN used) (PP (IN in) (NP (JJ nuclear) (NN power) (NNS plants))))) (CC and) (NP (NP (CD one) (NN type)) (PP (IN of) (NP (JJ nuclear) (NN bomb)))))) (. .)))
Fission is the radioactive process used in nuclear power plants and one type of nuclear bomb.