| http://www.w3.org/ns/prov#value | - Examples of the substituents B include an alkyl group (preferably having 1 to 20 carbon atoms, still preferably 1 to 12 carbon atoms, and particularly preferably 1 to 8 carbon atoms, such as methyl, ethyl, isopropyl, tert-butyl, n-octyl, n-decyl, n-hexadecyl, cyclopropyl, cyclopentyl or cyclohexyl), an alkenyl group (preferably having 2 to 20 carbon atoms, still preferably 2 to 12 carbon atoms, an
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