Matched context for inefficient and effective

The page lists matched contexts for inefficient and effective.

Share - inefficient	Share - effective	Phrase
23.67%	0.90%	{inefficient or effective} [effectiveness] operation
7.81%	1.27%	{inefficient or effective} [effectiveness] system
15.91%	0.45%	{inefficient or effective} [effectiveness] combustion
6.07%	0.61%	{inefficient or effective} [effectiveness] use
4.92%	0.51%	very {inefficient or effective}