Matched context for existing and pf

The page lists matched contexts for existing and pf.

Share - existing	Share - pf	Phrase
1.54%	25.27%	pressure {existing or pf}
0.33%	6.94%	fluid [state] {existing or pf}
0.09%	11.93%	fuel {existing or pf}
0.12%	0.74%	{existing or pf} pressure
0.27%	2.82%	actual [validity] {existing or pf}
0.21%	3.79%	brake {existing or pf}