( ( ( ( 4.8 Classifying ) , ) ( ( Constructing ( Models Contrast ) ) ( ( the difference ) ( between ( vascular ( and ( nonvascular ( plant reproduction ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (CD 4.8) (NN Classifying)) (, ,) (NP (NP (NNP Constructing) (NNPS Models) (NNP Contrast)) (NP (NP (DT the) (NN difference)) (PP (IN between) (NP (NN vascular) (CC and) (NN nonvascular) (NN plant) (NN reproduction))))) (. .)))
4.8 Classifying, Constructing Models Contrast the difference between vascular and nonvascular plant reproduction.
(ROOT (S (NP (NNP Moss)) (VP (VBZ is) (VP (RBS best) (VBN classified) (PP (IN as) (NP (DT a) (NN nonvascular) (NN plant))))) (. .)))
Moss is best classified as a nonvascular plant.