( ( Compare ( gradualism ( and ( punctuated equilibrium ) ) ) ) . )
(ROOT (S (VP (VB Compare) (NP (NN gradualism) (CC and) (NN punctuated) (NN equilibrium))) (. .)))
Compare gradualism and punctuated equilibrium.
(ROOT (S (NP (NNP Darwin)) (VP (VBD believed) (PP (IN in) (NP (NN gradualism)))) (. .)))