As the Tokugawa shoguns had feared, this opening of the floodgates of Western culture after such prolonged isolation had a traumatic effect on Japanese society.
( ( As ( ( the ( Tokugawa shoguns ) ) ( had feared ) ) ) ( , ( ( ( this opening ) ( of ( ( the floodgates ) ( of ( ( Western culture ) ( after ( such ( prolonged isolation ) ) ) ) ) ) ) ) ( ( had ( ( a ( traumatic effect ) ) ( on ( Japanese society ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN As) (S (NP (DT the) (NNP Tokugawa) (NNS shoguns)) (VP (VBD had) (VP (VBN feared))))) (, ,) (NP (NP (DT this) (NN opening)) (PP (IN of) (NP (NP (DT the) (NNS floodgates)) (PP (IN of) (NP (NP (JJ Western) (NN culture)) (PP (IN after) (NP (JJ such) (JJ prolonged) (NN isolation)))))))) (VP (VBD had) (NP (NP (DT a) (JJ traumatic) (NN effect)) (PP (IN on) (NP (JJ Japanese) (NN society))))) (. .)))
Opening of floodgates of Western culture after such prolonged isolation had a traumatic effect on Japanese society, as the Tokugawa shoguns had feared.
( ( Opening ( of ( floodgates ( of ( ( Western culture ) ( after ( such ( prolonged isolation ) ) ) ) ) ) ) ) ( ( ( ( had ( ( a ( traumatic effect ) ) ( on ( Japanese society ) ) ) ) , ) ( as ( ( the ( Tokugawa shoguns ) ) ( had feared ) ) ) ) . ) )
(ROOT (S (NP (NP (NN Opening)) (PP (IN of) (NP (NP (NNS floodgates)) (PP (IN of) (NP (NP (JJ Western) (NN culture)) (PP (IN after) (NP (JJ such) (JJ prolonged) (NN isolation)))))))) (VP (VBD had) (NP (NP (DT a) (JJ traumatic) (NN effect)) (PP (IN on) (NP (JJ Japanese) (NN society)))) (, ,) (SBAR (IN as) (S (NP (DT the) (NNP Tokugawa) (NNS shoguns)) (VP (VBD had) (VP (VBN feared)))))) (. .)))