Matched context for pc and pf

The page lists matched contexts for pc and pf.

Share - pc	Share - pf	Phrase
13.92%	25.27%	pressure {pc or pf}
0.84%	1.26%	supply {pc or pf} [perform operation]
0.82%	0.67%	{pc or pf} in chamber
0.93%	0.86%	{pc or pf} [does] become
1.36%	0.71%	value {pc or pf}