About: http://webisa.webdatacommons.org/263485208

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	should not freed memory locations have null data, or is free memory just a synonym for memory that can be used by other applications, irrespective of whether the locations contain data or not?
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com