( ( ( Describe and ) ( give ( ( ( an example ) ( of ( a ( low ( energy coast ) ) ) ) ) ( Describe ( why ( ( ( the ( net motion ) ) ( of sand ) ) ( ( is parallel ) ( to ( the beach ) ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VP (VB Describe)) (CC and) (VP (VB give) (S (NP (NP (DT an) (NN example)) (PP (IN of) (NP (DT a) (JJ low) (NN energy) (NN coast)))) (VP (VB Describe) (SBAR (WHADVP (WRB why)) (S (NP (NP (DT the) (JJ net) (NN motion)) (PP (IN of) (NP (NN sand)))) (VP (VBZ is) (RB parallel) (PP (TO to) (NP (DT the) (NN beach)))))))))) (. .)))
Describe and give an example of a low energy coast Describe why the net motion of sand is parallel to the beach.
(ROOT (S (NP (NNP Low) (NN energy)) (VP (VBZ causes) (S (NP (NNS waves)) (VP (TO to) (VP (VB bring) (NP (NN sand)) (PRT (RP up)) (PP (IN onto) (NP (NP (DT the) (NN beach)) (PP (IN during) (NP (NNS summers))))))))) (. .)))