About: http://webisa.webdatacommons.org/139355232

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	From other side you should have some component, who periodically (cron) takes a look into that lastUpdate bean and compare its Date with current time, to decide if there is need to send email.
http://www.w3.org/ns/prov#wasQuotedFrom	spring.io