| http://www.w3.org/ns/prov#value | - ch as polyethylene, resin materials having the alkyl group such as polypropylene, resin materials having the epoxy group such as epoxy resins, resin materials having the amide group such as melamine resins, resin materials having the methylol group such as xylene resins, chemical compounds thereof, ceramic materials such as silicon dioxide, and chemical compounds thereof.
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