PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • (1) A contract for sale of goods may be made in any manner sufficient to show agreement, including offer and acceptance, conduct by both parties which recognizes the existence of a contract, the interaction of electronic agents, and the interaction of an electronic agent and an individual.
http://www.w3.org/ns/prov#wasQuotedFrom
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