| http://www.w3.org/ns/prov#value | - In one embodiment, the lower strip is a wet laid material such as a through-dried tissue having a density greater than 0.1 grams per cubic centimeter (g/cc) and suitably greater than about 0.15 g/cc, while the upper strip is an air laid material having a density less than about 0.15 g/cc and specifically less than about 0.1 g/cc.
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