Matched context for cleanliness and economy

The page lists matched contexts for cleanliness and economy.

Share - cleanliness	Share - economy	Phrase
13.68%	11.05%	improve {cleanliness or economy} [perform operation]
31.67%	1.92%	engine {cleanliness or economy}
17.32%	2.46%	improvement in {cleanliness or economy}
16.69%	0.62%	maintain {cleanliness or economy} [perform operation]
5.47%	0.42%	high [size] {cleanliness or economy}