About: http://webisa.webdatacommons.org/93942598

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 the book there is a section that explain the use of .dtors and .ctors.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com