<http://webisa.webdatacommons.org/prov/69608220>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/91069131> .
<http://webisa.webdatacommons.org/91069131>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/91069131>	<http://www.w3.org/ns/prov#value>	"Occasionally, government agencies and other organizations change URLs or remove old content, which leads to a particular link being inactive." .
<http://webisa.webdatacommons.org/91069131>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<thompson.com> .