About: http://webisa.webdatacommons.org/77273174

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	Halt the command, either because the user has decided to cancel the build ('reason' is a string), or because the slave has disconnected ('reason' is a ConnectionLost Failure).
http://www.w3.org/ns/prov#wasQuotedFrom	buildbot.net