<http://webisa.webdatacommons.org/prov/105465047>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/169327325> .
<http://webisa.webdatacommons.org/169327325>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/169327325>	<http://www.w3.org/ns/prov#value>	"contract means that Walmart, Costco, and other retailers are free to shop around" .
<http://webisa.webdatacommons.org/169327325>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<chicagobooth.edu> .