( Leaching ( ( is ( ( done ( by ( ( irrigation or ) precipitation ) ) ) ( ( removing ( the ( soluble substances ) ) ) ( from ( ( ( the ( eroded particles ) ) ( of rock ) ) ( that ( ( make up ) ( the ( mineral content ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Leaching)) (VP (VBZ is) (VP (VBN done) (PP (IN by) (NP (NN irrigation) (CC or) (NN precipitation))) (S (VP (VBG removing) (NP (DT the) (JJ soluble) (NNS substances)) (PP (IN from) (NP (NP (DT the) (JJ eroded) (NNS particles)) (PP (IN of) (NP (NN rock))) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (DT the) (NN mineral) (NN content))))))))))) (. .)))
Leaching is done by irrigation or precipitation removing the soluble substances from the eroded particles of rock that make up the mineral content.
(ROOT (S (NP (DT A) (NN mineral)) (VP (VBZ is) (VP (VBN described) (PP (IN as) (NP (NP (DT a) (JJ natural) (NN substance)) (SBAR (WHNP (WDT that)) (S (VP (VBZ makes) (PRT (RP up)) (NP (NNS rocks))))))))) (. .)))