Matched context for descend and confine

The page lists matched contexts for descend and confine.

Share - descend	Share - confine	Phrase
19.34%	7.56%	piston [does] {descend or confine}
2.53%	0.56%	{descend or confine} piston [perform operation]
1.74%	0.22%	{descend or confine} modal can
1.29%	0.33%	{descend or confine} modal will
1.30%	0.58%	valve [does] {descend or confine}