( ( ( A ( drumlin 's ) ) ( long axis ) ) ( ( parallels ( ( ( the ( glacier 's ) ) direction ) ( of flow ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN drumlin) (POS 's)) (JJ long) (NNS axis)) (VP (VBZ parallels) (NP (NP (NP (DT the) (NN glacier) (POS 's)) (NN direction)) (PP (IN of) (NP (NN flow))))) (. .)))
A drumlin's long axis parallels the glacier's direction of flow.
(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)))))))))))))) (. .)))