PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Y is optionally substituted at one or more available carbon atoms with halogen, oxo, hydroxyl, lower alkyl, lower alkoxy or lower haloalkyl, with the provisos that when X is O???Y and R is C, Y is other than hydrogen, and when J is CH, R29 and R30 together form J???.
http://www.w3.org/ns/prov#wasQuotedFrom
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