| http://www.w3.org/ns/prov#value | - referably from 1 to 16, and particularly preferably from 1 to 12, carbon atoms, e.g., methylthio and ethylthio), an arylthio group (an arylthio group preferably having from 6 to 20, more preferably from 6 to 16, and particularly preferably from 6 to 12, carbon atoms, e.g., phenylthio), a sulfonyl group (a sulfonyl group preferably having from 1 to 20, more preferably from 1 to 16, and particularly
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