( ( This cycle ) ( ( is ( repeated ( until ( ( the end ) ( of ( the ( third year ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN cycle)) (VP (VBZ is) (VP (VBN repeated) (PP (IN until) (NP (NP (DT the) (NN end)) (PP (IN of) (NP (DT the) (JJ third) (NN year))))))) (. .)))
This cycle is repeated until the end of the third year.
(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.