( ( Sandy soil ) ( ( has ( particles ( that ( are ( very ( coarse ( with ( ( lots ( of ( air space ) ) ) ( that ( ( allows water ) ( to ( ( drain ( through it ) ) ( very quickly ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sandy) (NN soil)) (VP (VBZ has) (NP (NP (NNS particles)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (RB very) (JJ coarse) (PP (IN with) (NP (NP (NNS lots)) (PP (IN of) (NP (NN air) (NN space))) (SBAR (WHNP (WDT that)) (S (VP (VBZ allows) (NP (NN water)) (S (VP (TO to) (VP (VB drain) (PP (IN through) (NP (PRP it))) (ADVP (RB very) (RB quickly)))))))))))))))) (. .)))
Sandy soil has particles that are very coarse with lots of air space that allows water to drain through it very 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.