| http://www.w3.org/ns/prov#value | - The indention region 28 comprises raised portions 30 having a height dimension Y, the height dimension Y being less than or equal to the depth dimension X. The raised portions 30 may be any three-dimensional geometric shape known including but not limited to ovals, circles, rectangles, trapezoids, triangles, cones, alphabet letters, and mixtures thereof.
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