<http://webisa.webdatacommons.org/8245699>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/311301277>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/8245699> .
<http://webisa.webdatacommons.org/8245699>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<the10000yearexplosion.com> .
<http://webisa.webdatacommons.org/8245699>	<http://www.w3.org/ns/prov#value>	"There may be a kind of symbiosis between farmers and pastoralists in which the food and other good is exchanged between the two systems." .