Matched context for obstacle and failure

The page lists matched contexts for obstacle and failure.

Share - obstacle	Share - failure	Phrase
5.64%	3.54%	detect {obstacle or failure} [perform operation]
8.88%	0.23%	encounter {obstacle or failure} [perform operation]
0.92%	1.71%	{obstacle or failure} detection
1.61%	0.22%	{obstacle or failure} detector
1.19%	0.32%	{obstacle or failure} means
0.64%	0.40%	{obstacle or failure} [does] cause
1.06%	0.39%	{obstacle or failure} [does] exist
3.44%	0.24%	avoid {obstacle or failure} [perform operation]
0.48%	0.36%	device {obstacle or failure}
0.94%	0.30%	not {obstacle or failure}
0.91%	0.20%	sense {obstacle or failure} [perform operation]