<http://webisa.webdatacommons.org/prov/178156597>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/442575278> .
<http://webisa.webdatacommons.org/442575278>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/442575278>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/442575278>	<http://www.w3.org/ns/prov#value>	"caravans to bring food, such as millet, camel steaks, and dates." .