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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	R6 here is particularly preferably hydrogen, methyl or ethyl, in particular hydrogen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au