( ( ( ( Part VI ) , ) ( ( Biogeochemical cycling ) ( of ( sulphur ( and ( other elements ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Part) (NNP VI)) (, ,) (NP (NP (JJ Biogeochemical) (NN cycling)) (PP (IN of) (NP (NN sulphur) (CC and) (JJ other) (NNS elements)))) (. .)))
Part VI, Biogeochemical cycling of sulphur and other  elements.
(ROOT (S (NP (NP (NNP Chemical) (NNS elements)) (CC and) (NP (NN water))) (VP (VBP are) (VP (VBN recycled) (PP (IN through) (NP (DT the) (JJ biogeochemical) (NN cycle))))) (. .)))