<http://webisa.webdatacommons.org/prov/506452238>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/47130381> .
<http://webisa.webdatacommons.org/47130381>	<http://www.w3.org/ns/prov#value>	"found when searching on sites such as Amazon.com." .
<http://webisa.webdatacommons.org/47130381>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<digitalmars.com> .
<http://webisa.webdatacommons.org/47130381>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .