About: http://webisa.webdatacommons.org/282861440

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	Earlier I said a predicate is a function that returns TRUE or FALSE. When working with NULLs it can return an additional value, UNKNOWN. This is called Three-Valued Logic.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com