<http://webisa.webdatacommons.org/prov/512548948>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/158083097> .
<http://webisa.webdatacommons.org/158083097>	<http://www.w3.org/ns/prov#value>	"In Shaffer, the user is first provided with a notification which is different for different types of messages, and it is repeated if the user fails to respond to the notification." .
<http://webisa.webdatacommons.org/158083097>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/158083097>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .