http://www.w3.org/ns/prov#value | - sodium aluminosilicate, sodium silicate; metal sulfates, such as calcium sulfate, barium sulfate, sodium sulfate, aluminum sodium sulfate, aluminum sulfate; gypsum; vermiculite; wood flour; aluminum trihydrate; carbon black; metal oxides, such as calcium oxide, aluminum oxide, iron oxide, titanium dioxide; and metal sulfites, such as calcium sulfite.
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