<http://webisa.webdatacommons.org/prov/512548948> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/159028845> . <http://webisa.webdatacommons.org/159028845> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/159028845> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/159028845> <http://www.w3.org/ns/prov#value> "This notification is different for different types of messages, and it is repeated if the user fails to respond to it." .