| http://www.w3.org/ns/prov#value | - (where, s is 1 or 2); R24 and R25 each independently are a hydrogen atom or an alkyl group having a carbon number of 1-12; R26 is a hydrogen atom or an alkyl group having a carbon number of 1-4; R27 is a hydrogen atom or an alkylene group having a carbon number of 1-12, an alkenylene group having a carbon number of 2-8, an alkylidene group having a carbon number of 2-8, a phenylalkylene group havi
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