<http://webisa.webdatacommons.org/prov/45099328>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/344972088> .
<http://webisa.webdatacommons.org/344972088>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/344972088>	<http://www.w3.org/ns/prov#value>	"the exchange of such materials as pottery, obsidian, and ground stone." .
<http://webisa.webdatacommons.org/344972088>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<arizona.edu> .