( ( ( Compare and ) ( ( ( contrast ( the ( punctuated ( equilibrium ( ( -LRB- ( PE -RRB- ) ) theory ) ) ) ) ) ( of evolution ) ) ( with ( that ( of ( the ( gradualism ( ( -LRB- ( G -RRB- ) ) theory ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VP (VB Compare)) (CC and) (VP (VB contrast) (NP (DT the) (JJ punctuated) (NN equilibrium) (PRN (-LRB- -LRB-) (NP (NNP PE)) (-RRB- -RRB-)) (NN theory)) (PP (IN of) (NP (NN evolution))) (PP (IN with) (NP (NP (DT that)) (PP (IN of) (NP (DT the) (JJ gradualism) (PRN (-LRB- -LRB-) (NP (NNP G)) (-RRB- -RRB-)) (NN theory))))))) (. .)))
Compare and contrast the punctuated equilibrium (PE) theory of evolution with that of the gradualism (G) theory.
(ROOT (S (NP (NNP Darwin)) (VP (VBD believed) (PP (IN in) (NP (NN gradualism)))) (. .)))