( Reproduction ( ( is ( by ( simple ( binary fission ) ) ) ) . ) )
(ROOT (S (NP (NNP Reproduction)) (VP (VBZ is) (PP (IN by) (NP (JJ simple) (JJ binary) (NN fission)))) (. .)))
Reproduction is by simple binary fission.
(ROOT (S (NP (NP (NNP Reproduction)) (PP (IN in) (NP (JJ prokaryotic) (NNS cells)))) (VP (VBZ is) (PP (IN by) (NP (JJ binary) (NN fission) (, ,) (NN enlargement) (CC and) (NN division)))) (. .)))