| http://www.w3.org/ns/prov#value | - Examples of these components are polyacrylonitrile fibers which may be modified by grafting moieties thereon such as polyvinyl alcohol chains, polyvinyl alcohol itself, hydrophilic polyurethane, poly(alkylphosphonates), partially hydrolyzed polyacrylamides (e.g., poly(N-N-dimethyl acrylamide), sulphonated polystyrene, or a class of poly(alkylene oxide), such as described in U.S. Pat. No. 4,559,050
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