( ( ( The ( low areas ) ) ( between ( ( ( drumlins , ) ( as ( well as ) ) ) ( ( the base ) ( of ( the drumlins ) ) ) ) ) ) ( , ( ( are ( covered ( by ( wet ( marine sediments ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (DT The) (JJ low) (NNS areas)) (PP (IN between) (NP (NP (NNS drumlins)) (, ,) (CONJP (RB as) (RB well) (IN as)) (NP (NP (DT the) (NN base)) (PP (IN of) (NP (DT the) (NNS drumlins))))))) (, ,) (VP (VBP are) (VP (VBN covered) (PP (IN by) (NP (JJ wet) (JJ marine) (NNS sediments))))) (. .)))
The low areas between drumlins, as well as the base of the drumlins, are covered by wet marine sediments.
(ROOT (S (NP (DT A) (NN drumlin)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (NP (DT a) (ADJP (JJ long) (CC and) (JJ low)) (NN hill)) (PP (IN of) (NP (NP (NNS sediments)) (SBAR (WHNP (WDT which)) (S (VP (VBP have) (VP (VBN been) (VP (VBN deposited) (PP (IN by) (NP (DT a) (NN glacier)))))))))))))) (. .)))