| http://www.w3.org/ns/prov#value | - Typical heteroatoms and/or heteroatomic groups which can replace the carbon atoms include, but are not limited to, ???O???, ???S???, ???S???O???, ???NR??????, ???PH???, ???S(O)???, ???S(O)2???, ???S(O)NR??????, ???S(O)2NR??????, and the like, including combinations thereof, where each R??? is independently selected.
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