About: http://webisa.webdatacommons.org/72144403

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	The bottom line is that you can not define a foreign key constraint that uses anything other than just the columns in the primary key that you are referencing.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com