( Fission ( ( is ( ( the process ) ( used ( ( ( in ( the ( first ( nuclear weapons ) ) ) ) and ) ( in ( power plants ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Fission)) (VP (VBZ is) (NP (NP (DT the) (NN process)) (VP (VBN used) (PP (PP (IN in) (NP (DT the) (JJ first) (JJ nuclear) (NNS weapons))) (CC and) (PP (IN in) (NP (NN power) (NNS plants))))))) (. .)))
Fission is the process used in the first nuclear weapons and in power plants.
(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.