<http://webisa.webdatacommons.org/prov/409617410>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/301256474> .
<http://webisa.webdatacommons.org/301256474>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wordpress.com> .
<http://webisa.webdatacommons.org/301256474>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/301256474>	<http://www.w3.org/ns/prov#value>	"Sraffa argues that there may be ???at any one moment as many ???natural??? rates of interest as there are commodities???." .