Matched context for obstacle and obstruction

The page lists matched contexts for obstacle and obstruction.

Share - obstacle	Share - obstruction	Phrase
8.88%	15.17%	encounter {obstacle or obstruction} [perform operation]
9.08%	4.02%	strike {obstacle or obstruction} [perform operation]
5.64%	2.72%	detect {obstacle or obstruction} [perform operation]
3.44%	3.34%	avoid {obstacle or obstruction} [perform operation]
3.24%	3.51%	present {obstacle or obstruction} [perform operation]
2.24%	3.38%	hit {obstacle or obstruction} [perform operation]
1.41%	3.20%	{obstacle or obstruction} to flow
1.50%	2.88%	contact {obstacle or obstruction} [perform operation]
1.63%	1.84%	road {obstacle or obstruction}
0.94%	1.15%	not {obstacle or obstruction}
1.19%	0.38%	{obstacle or obstruction} means