( This ( ( causes ( waves ( to ( ( ( ( break farther ) offshore ) , ) ( decreasing ( ( the ( wave energy ) ) ( that ( reaches ( the beach ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ causes) (S (NP (NNS waves)) (VP (TO to) (VP (VB break) (ADVP (RB farther)) (ADVP (RB offshore)) (, ,) (S (VP (VBG decreasing) (NP (NP (DT the) (NN wave) (NN energy)) (SBAR (WHNP (WDT that)) (S (VP (VBZ reaches) (NP (DT the) (NN beach)))))))))))) (. .)))
This causes waves to break farther offshore, decreasing the wave energy that reaches 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))))))))) (. .)))