<http://webisa.webdatacommons.org/418911982>	<http://www.w3.org/ns/prov#value>	"Pittsburgh was a lonely frontier outpost, St. Louis a smoky French trading village, Indianapolis and Columbus were necessary exchange centers for the farmers and town-builders of Middle America." .
<http://webisa.webdatacommons.org/418911982>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<worldmag.com> .
<http://webisa.webdatacommons.org/prov/473237953>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418911982> .
<http://webisa.webdatacommons.org/418911982>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .