21.   Groups of officers in riot gear chased demonstrators through clouds of tear gas, and Yonhap said the protesters brandished iron pipes.

22.   He said they were beaten up with iron pipes, kicked, punched, jumped on and eventually killed.

23.   At one point, hundreds of students and residents brandished iron pipes in vicious fighting around piles of burning tyres.

24.   Many carried iron pipes but did not use them.

25.   Others, however, flagrantly carried iron pipes, spears and axes in defiance of the ban.

26.   Others, however, flagrantly carried iron pipes, spears and axes in defiance of the prohibition and without interference by police.

n. + pipe >>共 184
steel 12.59%
drain 6.05%
burst 5.93%
gas 5.81%
sewer 4.24%
crack 3.51%
iron 3.15%
drainage 3.03%
sewage 2.78%
vent 2.78%
iron + n. >>共 451
bar 12.76%
ore 6.20%
fist 4.32%
rod 3.58%
shot 3.44%
play 2.98%
gate 2.66%
grip 2.30%
fence 2.25%
deficiency 1.88%
pipe 1.19%
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