<http://webisa.webdatacommons.org/151420554>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/151420554>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/491240601>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/151420554> .
<http://webisa.webdatacommons.org/151420554>	<http://www.w3.org/ns/prov#value>	"User context is comprised of the user's immediate surroundings (e.g. what device and other users are proximal to the particular user) and the preferences and/or policies of the devices and user." .