About: http://webisa.webdatacommons.org/163318934

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	In my test there is a possibility to have null values and because of that the last stage (Act) starts looking a little bit strange (it is no longer act only).
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com