Matched context for block off and shut

The page lists matched contexts for block off and shut.

Share - block off	Share - shut	Phrase
6.15%	12.23%	{block off or shut} port [perform operation]
4.06%	15.43%	valve [does] {block off or shut}
2.60%	15.45%	{block off or shut} passage [perform operation]
3.40%	4.83%	{block off or shut} communication [perform operation]
4.30%	3.26%	{block off or shut} chamber [perform operation]
2.24%	1.31%	{block off or shut} modal can
1.15%	1.42%	means [does] {block off or shut}