From Port-Louis all the way down Grande Terre's west coast to Pointe Pitre there extend vast mangrove swamps.
( ( From ( ( ( Port-Louis ( all ( the way ) ) ) ( down ( ( Grande ( Terre 's ) ) ( west coast ) ) ) ) ( to ( Pointe Pitre ) ) ) ) ( there ( ( extend ( vast ( mangrove swamps ) ) ) . ) ) )
(ROOT (S (PP (IN From) (S (VP (VBG Port-Louis) (NP (PDT all) (DT the) (NN way)) (PP (IN down) (NP (NP (NNP Grande) (NNP Terre) (POS 's)) (JJ west) (NN coast))) (PP (TO to) (NP (NNP Pointe) (NNP Pitre)))))) (NP (EX there)) (VP (VB extend) (NP (JJ vast) (NN mangrove) (NNS swamps))) (. .)))
There's a swath of mangrove swaps from Port-Louis to Pointe Pitre.
( There ( ( 's ( ( a swath ) ( of ( ( mangrove swaps ) ( from ( Port-Louis ( to ( Pointe Pitre ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ 's) (NP (NP (DT a) (NN swath)) (PP (IN of) (NP (NP (JJ mangrove) (NNS swaps)) (PP (IN from) (NP (NP (NNP Port-Louis)) (PP (TO to) (NP (NNP Pointe) (NNP Pitre))))))))) (. .)))