About: http://webisa.webdatacommons.org/9171145

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	In such systems, if the user does not specify a column as including the primary key, the system may nevertheless assign a primary key to each row.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com