PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This is absolutely essential.The reason is that in mail order, the selling cost for each item sold ??? that is, the cost of getting and filling each order ??? is very high ... much higher than it is in other forms of selling.
http://www.w3.org/ns/prov#wasQuotedFrom
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