11.   All flights were cancelled as TNSM activists took over the control tower and erected obstacles on the runway.

12.   Syrian President Hafez al-Assad said Tuesday that the chances for the Middle East were running out and blamed Israel for erecting obstacles to their negotiations.

v. + obstacle >>共 187
face 23.82%
overcome 17.78%
remove 8.92%
have 3.16%
create 2.95%
present 2.74%
encounter 2.11%
clear 2.11%
pose 1.83%
surmount 1.41%
erect 0.84%
erect + n. >>共 283
barricade 12.51%
barrier 8.98%
tent 6.60%
roadblock 5.07%
fence 4.07%
monument 3.07%
statue 2.76%
wall 2.53%
memorial 2.15%
building 2.15%
obstacle 0.92%
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