About: http://webisa.webdatacommons.org/391804437

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	But seeing as the hierarchy of observers may be deeper than just 1 level, chances are a task update results in a activity update, which results in a project update.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com