<http://webisa.webdatacommons.org/257341790>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/63681885>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/257341790> .
<http://webisa.webdatacommons.org/257341790>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/257341790>	<http://www.w3.org/ns/prov#value>	"Web server 108 may request authentication, such as a username and password, from web browser 104." .