About: http://webisa.webdatacommons.org/215310952

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 point of subclassing is that your code can distinguish different types of failure and treat them differently.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com