Matched context for pull back and urge

The page lists matched contexts for pull back and urge.

Share - pull back	Share - urge	Phrase
19.29%	6.70%	spring [does] {pull back or urge}
19.15%	4.77%	{pull back or urge} piston [perform operation]
20.96%	0.45%	position [location] {pull back or urge}