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Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	(c) Clark classed as concrete capital not merely the artificial, humanly produced means of production, but all instruments and materials, including land and all other natural agents.
http://www.w3.org/ns/prov#wasQuotedFrom	econlib.org