The contrast between the landscape of the central highlands and the south coast could not be more marked.
( ( ( The contrast ) ( between ( ( the landscape ) ( of ( ( ( the ( central highlands ) ) and ) ( the ( south coast ) ) ) ) ) ) ) ( ( ( could not ) ( be ( more marked ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN contrast)) (PP (IN between) (NP (NP (DT the) (NN landscape)) (PP (IN of) (NP (NP (DT the) (JJ central) (NNS highlands)) (CC and) (NP (DT the) (JJ south) (NN coast))))))) (VP (MD could) (RB not) (VP (VB be) (ADJP (RBR more) (JJ marked)))) (. .)))
The contrast between the highlands and the coast were easily marked.
( ( ( The contrast ) ( between ( ( ( the highlands ) and ) ( the coast ) ) ) ) ( ( were ( easily marked ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN contrast)) (PP (IN between) (NP (NP (DT the) (NNS highlands)) (CC and) (NP (DT the) (NN coast))))) (VP (VBD were) (VP (ADVP (RB easily)) (VBN marked))) (. .)))