About: http://webisa.webdatacommons.org/24112154

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	My comment is mainly in reference to point #3: under what circumstances is ON UPDATE CASCADE applicable if we are assuming that the parent key is not updateable?
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com