Matched context for lens and concavity

The page lists matched contexts for lens and concavity.

Share - lens	Share - concavity	Phrase
0.95%	27.38%	{lens or concavity} surface
1.04%	6.89%	form {lens or concavity} [perform operation]
2.14%	3.25%	{lens or concavity} portion
1.04%	3.38%	{lens or concavity} [does] have
0.47%	4.78%	{lens or concavity} end
0.72%	3.22%	have {lens or concavity} [perform operation]