( ( ( the ( ( poorly drained ) ( , ( sandy soils ) ) ) ) ( of ( the flatwoods ) ) ) ; )
(ROOT (NP (NP (NP (DT the) (ADJP (RB poorly) (JJ drained)) (, ,) (JJ sandy) (NNS soils)) (PP (IN of) (NP (DT the) (NNS flatwoods)))) (: ;)))
the poorly drained, sandy soils of the flatwoods;
(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.