Matched context for hazard and obstruction

The page lists matched contexts for hazard and obstruction.

Share - hazard	Share - obstruction	Phrase
7.45%	3.51%	present {hazard or obstruction} [perform operation]
1.70%	15.17%	encounter {hazard or obstruction} [perform operation]
1.15%	3.34%	avoid {hazard or obstruction} [perform operation]
1.75%	1.84%	road {hazard or obstruction}
0.50%	1.10%	cause {hazard or obstruction} [perform operation]
0.42%	1.15%	not {hazard or obstruction}