PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ever since prehistoric eras ??? when nomads developed extended kinship relations based on reciprocal interdependence ??? trade, barter and other forms of exchange have been beset by an underlying anxiety that any bargain struck might be an inequitable deal.
http://www.w3.org/ns/prov#wasQuotedFrom
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