Matched context for unblock and obscure

The page lists matched contexts for unblock and obscure.

Share - unblock	Share - obscure	Phrase
13.84%	11.79%	{unblock or obscure} port [perform operation]
4.83%	26.07%	{unblock or obscure} line [perform operation]
5.48%	11.08%	{unblock or obscure} passage [perform operation]
3.39%	11.18%	valve [does] {unblock or obscure}