| http://www.w3.org/ns/prov#value | - can be (CH2)n where n is 4 or 5; X is a hydrogen atom, a nitro radical, a halogen atom, a carboxy radical, an alkoxycarbonyl radical, an alkyl radical with one to five carbon atoms, or a alkoxy radical with one to five carbon atoms; and Y is a hydrogen atom, a nitro radical, a halogen atom, a formyl radical, or an alkoxy radical with one to five carbon atoms. 2.
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