11.   He claimed some of the demolished structures were built to obstruct the flow of traffic or drainage.

v. + flow >>共 394
stem 7.96%
stop 6.94%
control 6.14%
increase 4.42%
restrict 3.91%
reduce 3.36%
block 2.96%
improve 2.81%
halt 2.81%
slow 2.41%
obstruct 0.40%
obstruct + n. >>共 206
justice 31.39%
effort 4.57%
investigation 4.37%
view 4.05%
police 4.05%
work 3.53%
traffic 1.87%
administration 1.56%
business 1.46%
search 1.25%
flow 1.14%
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