Matched context for cost and retrofit

The page lists matched contexts for cost and retrofit.

Share - cost	Share - retrofit	Phrase
5.86%	6.78%	{cost or retrofit} modal can
7.03%	4.88%	{cost or retrofit} system [perform operation]
3.98%	3.05%	{cost or retrofit} modal may
9.02%	1.34%	system [does] {cost or retrofit}
3.82%	0.48%	not {cost or retrofit}