( ( ( ( 5 ( -RRB- Differentiate ) ) ( between ( ( ( the gradualism ) and ) ( punctuated ( equilibrium models ) ) ) ) ) ( of evolution ) ) . )
(ROOT (NP (NP (CD 5) (NNP -RRB-) (NNP Differentiate)) (PP (IN between) (NP (NP (DT the) (NN gradualism)) (CC and) (NP (JJ punctuated) (NN equilibrium) (NNS models)))) (PP (IN of) (NP (NN evolution))) (. .)))
5) Differentiate between the gradualism and punctuated equilibrium models of evolution.
(ROOT (S (NP (NNP Darwin)) (VP (VBD believed) (PP (IN in) (NP (NN gradualism)))) (. .)))