<http://webisa.webdatacommons.org/prov/510479626>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/178534404> .
<http://webisa.webdatacommons.org/178534404>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/178534404>	<http://www.w3.org/ns/prov#value>	"The problem of what to do if that does not work is a thorny one." .
<http://webisa.webdatacommons.org/178534404>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<schneier.com> .