<http://webisa.webdatacommons.org/prov/492592901>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/391418598> .
<http://webisa.webdatacommons.org/391418598>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<uchicago.edu> .
<http://webisa.webdatacommons.org/391418598>	<http://www.w3.org/ns/prov#value>	"If the figure were a square, ???twenty miles on each side, the area would be four hundred square miles; if a circle, it would be considerably more than five hundred." .
<http://webisa.webdatacommons.org/391418598>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .