<http://webisa.webdatacommons.org/159875013>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/47952226>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/159875013> .
<http://webisa.webdatacommons.org/159875013>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<piriform.com> .
<http://webisa.webdatacommons.org/159875013>	<http://www.w3.org/ns/prov#value>	"to detect viruses, spyware, and other potentially unwanted software." .