About: http://webisa.webdatacommons.org/336679019

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	Maybe because the first one is a service and the latter one is an exchange.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com