( ( Mangrove roots ) ( ( ( ( are ( like stilts ) ) , ) ( ( allowing ( mangrove trees ) ) ( to ( ( rise high ) ( above ( the water ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Mangrove) (NNS roots)) (VP (VBP are) (PP (IN like) (NP (NNS stilts))) (, ,) (S (VP (VBG allowing) (NP (JJ mangrove) (NNS trees)) (S (VP (TO to) (VP (VB rise) (ADJP (JJ high)) (PP (IN above) (NP (DT the) (NN water))))))))) (. .)))
Mangrove roots are like stilts, allowing mangrove trees to rise high above the water.
(ROOT (S (NP (JJ Stilt) (JJ like) (NNS roots)) (VP (VBZ helps) (S (NP (JJ mangrove) (NNS trees)) (VP (VB rise) (ADJP (JJ high) (PP (IN above) (NP (DT the) (NN water))))))) (. .)))