About: http://webisa.webdatacommons.org/61911444

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	When does Django's custom model field method to_python get anything other than an instance? - Stack Overflow
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com