( ( The cycle ) ( constantly ( ( ( ( repeated itself ) , ) ( with ( ( no end ) ( in sight ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN cycle)) (ADVP (RB constantly)) (VP (VBD repeated) (NP (PRP itself)) (, ,) (PP (IN with) (NP (NP (DT no) (NN end)) (PP (IN in) (NP (NN sight)))))) (. .)))
The cycle constantly repeated itself, with no end in sight.
(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.