Matched context for sulfate and fluoride

The page lists matched contexts for sulfate and fluoride.

Share - sulfate	Share - fluoride	Phrase
4.25%	3.75%	barium {sulfate or fluoride}
1.95%	7.99%	chromic [physical/chemical] {sulfate or fluoride}
2.16%	3.71%	magnesium {sulfate or fluoride}
1.08%	5.74%	calcium {sulfate or fluoride}
0.90%	3.68%	strontium {sulfate or fluoride}