| http://www.w3.org/ns/prov#value | - Other materials that may be employed as carriers include carbon materials such as charcoal, petroleum coke, coke from coal, CVD carbon, carbon black, lamp black, activated carbon, and graphite, rubber, gypsum, cement, concrete, asphalt, wood, fiber glass, glass, metals, metal alloys, clothing fabrics, plaster of Paris, mineral aggregate, leather, natural and synthetic fibers, liposomes, liposphere
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