| http://www.w3.org/ns/prov#value | - ch as methyl cellulose or hydroxyethyl cellulose, or cellulose acetate, provided that the modified cellulose possesses free hydroxyl groups; starches, dextrans, and other polysaccharides; inorganic and organic materials, including polymers, which possess or have been modified to possess hydroxyl groups on the surfaces thereof, by any suitable modification means including chemical reaction, irradia
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