( ( Sandy soils ) ( ( ( do n't ) ( ( have ( the ( fine ( textured particles ) ) ) ) ( so ( they ( drain quickly ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sandy) (NNS soils)) (VP (VBP do) (RB n't) (VP (VB have) (NP (DT the) (JJ fine) (JJ textured) (NNS particles)) (SBAR (IN so) (S (NP (PRP they)) (VP (VB drain) (ADVP (RB quickly))))))) (. .)))
Sandy soils don't have the fine textured particles so they drain quickly.
(ROOT (S (S (NP (DT This) (NN statement)) (ADVP (RB best)) (VP (VBZ describes) (NP (JJ sandy) (NNS soils)))) (: :) (S (NP (JJ sandy) (NNS soils)) (VP (VBP allow) (NP (NN water)) (S (VP (TO to) (VP (VB drain) (ADVP (RB quickly))))))) (. .)))
This statement best describes sandy soils: sandy soils allow water to drain quickly.