Matched context for shut and unblock

The page lists matched contexts for shut and unblock.

Share - shut	Share - unblock	Phrase
12.23%	13.84%	{shut or unblock} port [perform operation]
15.45%	5.48%	{shut or unblock} passage [perform operation]
15.43%	3.39%	valve [does] {shut or unblock}
1.42%	4.53%	means [does] {shut or unblock}