PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Three basic reasons govern price instability, the agriculture forecast notes ??? natural factors such as weather, disease and pests, price ???inelasticities??? or the responsiveness of supply and demand to price changes, which become more critical when stocks are low.
http://www.w3.org/ns/prov#wasQuotedFrom
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