Matched context for shortage and preignition

The page lists matched contexts for shortage and preignition.

Share - shortage	Share - preignition	Phrase
6.22%	27.19%	{shortage or preignition} [does] occur
5.94%	11.86%	cause {shortage or preignition} [perform operation]
7.56%	5.27%	detect {shortage or preignition} [perform operation]
4.77%	7.63%	prevent {shortage or preignition} [perform operation]