| http://www.w3.org/ns/prov#value | - wherein each R is independently selected from the group consisting of hydrogen, alkyl having 1 to about 40 carbon atoms (for example, throughout with respect to the number of carbon atoms), alkoxy having 1 to about 40 carbon atoms, phenyl, substituted phenyl, higher aromatic such as naphthalene and anthracene, alkylphenyl having 6 to about 40 carbons, alkoxyphenyl having 6 to 40 carbons, aryl havi
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