( ( ( The entrainment ) ( of ( ( sediment particles ) ( by wind ) ) ) ) ( ( ( ( ( follows ( ( roughly ( the ( same principles ) ) ) ( as ( particle entrainment ) ) ) ) ( by water ) ) , ) ( for ( wind ( ( is also ) ( regarded ( as ( a ( fluid medium ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN entrainment)) (PP (IN of) (NP (NP (JJ sediment) (NNS particles)) (PP (IN by) (NP (NN wind)))))) (VP (VBZ follows) (NP (NP (RB roughly) (DT the) (JJ same) (NNS principles)) (PP (IN as) (NP (NN particle) (NN entrainment)))) (PP (IN by) (NP (NN water))) (, ,) (SBAR (IN for) (S (NP (NN wind)) (VP (VBZ is) (ADVP (RB also)) (VP (VBN regarded) (PP (IN as) (NP (DT a) (JJ fluid) (NN medium)))))))) (. .)))
The entrainment of sediment particles by wind follows roughly the same principles as particle entrainment by water, for wind is also regarded as a fluid medium.
(ROOT (S (NP (NNS Sediments)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (DT the) (JJ small) (NNS particles)))) (SBAR (IN that) (S (NP (NNS rocks)) (VP (VBP are) (VP (VBN worn) (PRT (RP down)) (PP (TO to)) (PP (IN by) (NP (NN water) (CC and) (NN wind)))))))) (. .)))