( ( ( ( ( Nonvascular plants ) , ) ( the ( ( mosses and ) liverworts ) ) ) , ) ( ( have ( the ( gametophyte ( phase dominant ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Nonvascular) (NNS plants)) (, ,) (NP (DT the) (NNS mosses) (CC and) (NNS liverworts)) (, ,)) (VP (VBP have) (NP (DT the) (NN gametophyte) (NN phase) (JJ dominant))) (. .)))
Nonvascular plants , the mosses and liverworts, have the gametophyte phase dominant.
(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.