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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	Each may be hydrogen, a lower alkyl radical containing from 1 to about 6 carbon atoms, e.g., methyl, ethyl, propyl or butyl; or aryl such as phenyl or tolyl, with methyl, ethyl or phenyl and especially methyl being preferred.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com