<http://webisa.webdatacommons.org/prov/106828992>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/147058163> .
<http://webisa.webdatacommons.org/147058163>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<kheper.net> .
<http://webisa.webdatacommons.org/147058163>	<http://www.w3.org/ns/prov#value>	"Their experiential observations, their discoveries are of considerable interest for whoever is concerned with the future." .
<http://webisa.webdatacommons.org/147058163>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .