Matched context for blocking and purifying

The page lists matched contexts for blocking and purifying.

Share - blocking	Share - purifying	Phrase
1.31%	24.60%	{blocking or purifying} [purpose] device
5.79%	2.19%	{blocking or purifying} [purpose] means
0.79%	8.39%	{blocking or purifying} [purpose] capability
1.36%	4.67%	{blocking or purifying} [purpose] operation
0.90%	3.46%	{blocking or purifying} [purpose] fuel
2.34%	1.55%	{blocking or purifying} [purpose] passage