About: http://webisa.webdatacommons.org/217142528

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	Row locking is a mechanism that lets Postgres maintain strict consistency in certain database constraints, such as foreign keys.
http://www.w3.org/ns/prov#wasQuotedFrom	pgcon.org