<http://webisa.webdatacommons.org/prov/284184524>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/167773674> .
<http://webisa.webdatacommons.org/167773674>	<http://www.w3.org/ns/prov#value>	"Suppliers have 2-dimensional types in the form of commitment costs and production costs." .
<http://webisa.webdatacommons.org/167773674>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<northwestern.edu> .
<http://webisa.webdatacommons.org/167773674>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .