Matched context for ingress and backflow

The page lists matched contexts for ingress and backflow.

Share - ingress	Share - backflow	Phrase
12.93%	22.00%	prevent {ingress or backflow} [perform operation]
2.48%	6.36%	fuel {ingress or backflow}
6.84%	1.33%	water {ingress or backflow}
2.75%	3.20%	fluid {ingress or backflow}
3.42%	1.08%	air {ingress or backflow}
2.22%	1.36%	avoid {ingress or backflow} [perform operation]
1.95%	0.93%	allow {ingress or backflow} [perform operation]