Matched context for obstruction and defect

The page lists matched contexts for obstruction and defect.

Share - obstruction	Share - defect	Phrase
15.17%	2.87%	encounter {obstruction or defect} [perform operation]
2.72%	1.15%	detect {obstruction or defect} [perform operation]
3.34%	0.86%	avoid {obstruction or defect} [perform operation]
1.55%	0.75%	remove {obstruction or defect} [perform operation]
1.60%	0.25%	{obstruction or defect} [does] prevent
1.10%	0.50%	cause {obstruction or defect} [perform operation]
1.15%	0.17%	not {obstruction or defect}
0.92%	0.28%	prevent {obstruction or defect} [perform operation]
1.15%	0.71%	system {obstruction or defect}