| http://www.w3.org/ns/prov#value | - wherein R4 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 18 carbon atoms and containing no ethylenically unsaturated group, R5 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms and containing an ethylenically unsaturated group, l is an integer of 0 to 2, and m is an integer of 1 to 3, provided that l+m is an integ
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