( Then ( ( the cycle ) ( repeats . ) ) )
(ROOT (S (RB Then) (NP (DT the) (NN cycle)) (VP (VBZ repeats)) (. .)))
Then the cycle repeats.
(ROOT (S (NP (DT The) (NN water) (NN cycle)) (VP (VBZ ends) (SBAR (IN with) (S (NP (PRP it)) (VP (VBZ repeats) (NP (PRP itself)))))) (. .)))
The water cycle ends with it repeats itself.