<http://webisa.webdatacommons.org/292541728>	<http://www.w3.org/ns/prov#value>	"variation which it may undergo in particular cases." .
<http://webisa.webdatacommons.org/292541728>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<econlib.org> .
<http://webisa.webdatacommons.org/292541728>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/287391068>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/292541728> .