| http://www.w3.org/ns/prov#value | - The materials of all the layers are the same as described above but the modification of FIG. 7 provides a little more strength and duration of time before disintegration when in contact with water or other liquids or moisture and furthermore is useful in connection with a pan or basin of the nature of that shown in FIG. 4 to provide greater coverage of the bottom of the pan or basin.
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