About: http://webisa.webdatacommons.org/257899637

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	it checks at our place that the 4 right moste bits are set, a very common way to test for errors and other states.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com