About: http://webisa.webdatacommons.org/435845261

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 meta-data in the database can provide information such as whether a column is required and if there is an index on it, its length, and much more.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com