| http://www.w3.org/ns/prov#value | - By way of example, the support 3a is constituted by a film of a light-permeable, water-impervious material, for example, a polymer such as polyethylene terephthalate, bisphenol-A polycarbonate, polystyrene, or a cellulose ester (e.g. cellulose diacetate, cellulose triacetate, or cellulose acetate propionate).
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