( ( ( ( Pines , ) ( as gymnosperms ) ) , ) ( ( represent ( one ( of ( ( the ( ( ( oldest and ) ( most successful ) ) groups ) ) ( of ( higher plants ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Pines)) (, ,) (ADJP (RB as) (JJ gymnosperms)) (, ,)) (VP (VBP represent) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (ADJP (JJS oldest) (CC and) (ADJP (RBS most) (JJ successful))) (NNS groups)) (PP (IN of) (NP (JJR higher) (NNS plants))))))) (. .)))
Pines, as gymnosperms, represent one of the oldest and most successful groups of higher plants.
(ROOT (S (NP (NNS Conifers)) (VP (VBP are) (NP (NP (DT the) (ADJP (RBS most) (JJ prevalent)) (NN type)) (PP (IN of) (NP (NNS gymnosperms))))) (. .)))