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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	wherein X2 is ???O??? or ???S???, n3 is an integer from 1 to 6, R2 is as defined above;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com