( ( The cycle ) ( ( is ( then ( ( repeated , ) ( providing ( ( a ( ( never ending ) supply ) ) ( of fertiliser ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN cycle)) (VP (VBZ is) (VP (ADVP (RB then)) (VBN repeated) (, ,) (S (VP (VBG providing) (NP (NP (DT a) (ADJP (ADVP (RB never)) (JJ ending)) (NN supply)) (PP (IN of) (NP (NN fertiliser)))))))) (. .)))
The cycle is then repeated, providing a never ending supply of fertiliser.
(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.