Matched context for ingress and expulsion

The page lists matched contexts for ingress and expulsion.

Share - ingress	Share - expulsion	Phrase
12.93%	13.56%	prevent {ingress or expulsion} [perform operation]
2.48%	16.16%	fuel {ingress or expulsion}
2.75%	10.38%	fluid {ingress or expulsion}
4.00%	7.09%	permit {ingress or expulsion} [perform operation]
3.42%	3.43%	air {ingress or expulsion}