Matched context for obstruction and drawback

The page lists matched contexts for obstruction and drawback.

Share - obstruction	Share - drawback	Phrase
15.17%	8.71%	encounter {obstruction or drawback} [perform operation]
3.34%	4.00%	avoid {obstruction or drawback} [perform operation]
6.56%	1.45%	free of {obstruction or drawback}
3.51%	0.77%	present {obstruction or drawback} [perform operation]
1.15%	1.59%	system {obstruction or drawback}
1.10%	0.23%	cause {obstruction or drawback} [perform operation]
0.92%	0.15%	prevent {obstruction or drawback} [perform operation]
1.55%	0.57%	remove {obstruction or drawback} [perform operation]