Matched context for rigidity and productivity

The page lists matched contexts for rigidity and productivity.

Share - rigidity	Share - productivity	Phrase
3.52%	22.98%	enhance {rigidity or productivity} [perform operation]
7.04%	11.42%	increase {rigidity or productivity} [perform operation]
3.04%	23.17%	improve {rigidity or productivity} [perform operation]
0.88%	8.23%	improved [effectiveness] {rigidity or productivity}