Matched context for stroke and approach

The page lists matched contexts for stroke and approach.

Share - stroke	Share - approach	Phrase
10.08%	5.40%	piston [does] {stroke or approach}
7.30%	3.45%	{stroke or approach} position [perform operation]
21.58%	0.27%	{stroke or approach} piston [perform operation]
3.30%	0.20%	chamber {stroke or approach}