About: http://webisa.webdatacommons.org/436322052

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 extend method works similar to include, but unlike include, you can use it to extend any object by including methods and constants from a module.
http://www.w3.org/ns/prov#wasQuotedFrom	rubymonk.com