( Diffusion ( ( is ( ( the movement ) ( of ( ( a solute ) ( from ( areas ( of ( ( high concentration ) ( to ( low concentration ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Diffusion)) (VP (VBZ is) (NP (NP (DT the) (NN movement)) (PP (IN of) (NP (NP (DT a) (NN solute)) (PP (IN from) (NP (NP (NNS areas)) (PP (IN of) (NP (NP (JJ high) (NN concentration)) (PP (TO to) (NP (JJ low) (NN concentration))))))))))) (. .)))
Diffusion is the movement of a solute from areas of high concentration to low concentration.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT the) (NN movement)) (PP (IN of) (NP (DT a) (NN substance)))) (PP (IN from) (NP (NP (DT an) (NN area)) (PP (IN of) (NP (NP (DT a) (JJR higher) (NN amount)) (PP (IN toward) (NP (NP (DT an) (NN area)) (PP (IN of) (NP (JJR lower) (NN amount) (NN diffusion)))))))))) (. .)))