| http://www.w3.org/ns/prov#value | - where R5, R6 and R??? are selected from a C1 to C20 linear, branched or cyclic alkyl group, alkoxyalkyl, aryloxyalkyl, such as phenoxymethyl, aryl and alkoxy, among others, and R7 is a C1 to C20 linear, branched or cyclic alkyl or acyl group, alkoxyalkyl, aryloxyalkyl, such as phenoxymethyl, aryl and alkoxy, among others.
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