( ( ( ( Repeat cycle ) ( 180 times ) ) ( until ( end ( of cruise ) ) ) ) . )
(ROOT (NP (NP (NN Repeat) (NN cycle)) (NP (CD 180) (NNS times)) (PP (IN until) (NP (NP (NN end)) (PP (IN of) (NP (NN cruise))))) (. .)))
Repeat cycle 180 times until end of cruise.
(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.