These 900 hectares (2,224 acres) of parkland on the western edge of the city constitute one of Baron Haussmann's happier achievements.
( ( ( ( These ( 900 hectares ) ) ( -LRB- ( ( 2,224 acres ) -RRB- ) ) ) ( of ( parkland ( on ( ( the ( western edge ) ) ( of ( the city ) ) ) ) ) ) ) ( ( constitute ( one ( of ( ( Baron ( Haussmann 's ) ) ( happier achievements ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (DT These) (CD 900) (NNS hectares)) (PRN (-LRB- -LRB-) (NP (CD 2,224) (NNS acres)) (-RRB- -RRB-))) (PP (IN of) (NP (NP (NN parkland)) (PP (IN on) (NP (NP (DT the) (JJ western) (NN edge)) (PP (IN of) (NP (DT the) (NN city)))))))) (VP (VBP constitute) (NP (NP (CD one)) (PP (IN of) (NP (NP (NNP Baron) (NNP Haussmann) (POS 's)) (JJ happier) (NNS achievements))))) (. .)))
Baron Haussmann regrets implementing the 900 hectares of parkland on the western edge of the city.
( ( Baron Haussmann ) ( ( regrets ( ( implementing ( ( the ( 900 hectares ) ) ( of parkland ) ) ) ( on ( ( the ( western edge ) ) ( of ( the city ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Baron) (NNP Haussmann)) (VP (VBZ regrets) (S (VP (VBG implementing) (NP (NP (DT the) (CD 900) (NNS hectares)) (PP (IN of) (NP (NN parkland)))) (PP (IN on) (NP (NP (DT the) (JJ western) (NN edge)) (PP (IN of) (NP (DT the) (NN city)))))))) (. .)))