About: http://webisa.webdatacommons.org/417356573

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 Java and other runtime oriented languages, pointers automatically start out with the NULL value, so dereferencing one is detected immediately.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net