About: http://webisa.webdatacommons.org/391873436

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	2) Primary Key is a combination of Unique and NOT NULL Constraints so it can???t
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com