( ( A ( deep ( root system ) ) ) ( ( anchors ( ( the tree ) ( against ( the wind ) ) ) ) . ) )
(ROOT (S (NP (DT A) (JJ deep) (NN root) (NN system)) (VP (VBZ anchors) (NP (NP (DT the) (NN tree)) (PP (IN against) (NP (DT the) (NN wind))))) (. .)))
A deep root system anchors the tree against the wind.
(ROOT (S (NP (JJ Deep) (NNS roots)) (VP (MD will) (ADVP (RBS best)) (VP (VB prevent) (NP (DT a) (NN tree)) (PP (IN from) (S (VP (VBG being) (VP (VBN blown) (PRT (RP over)) (PP (IN by) (NP (JJ high) (NNS winds))) (PP (IN during) (NP (DT a) (NN storm))))))))) (. .)))
Deep roots will best prevent a tree from being blown over by high winds during a storm.