About: http://webisa.webdatacommons.org/172576295

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	It can be used to trigger some action (like sending an email) before a record is created/updated.Here is an example:db.define_table('numbers',
http://www.w3.org/ns/prov#wasQuotedFrom	web2py.com