| http://www.w3.org/ns/prov#value | - om, a halogen atom, or the like; R2, R3, and R4 are each independently a hydrogen atom, a halogen atom, C1-C15 alkyl optionally substituted with one or more C1-C12 alkyloxy or the like, or the like; R5 is a hydrogen atom or the like; R6...
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