<http://webisa.webdatacommons.org/prov/1013121>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/139128260> .
<http://webisa.webdatacommons.org/139128260>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<economist.com> .
<http://webisa.webdatacommons.org/139128260>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/139128260>	<http://www.w3.org/ns/prov#value>	"Economics does not include externalities such as pollution, poisoned milk, etc." .