About: http://webisa.webdatacommons.org/370612156

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	However I am not 100% sure if that method is guaranteed to run on the main thread and if a view controller gets dealloc'ed on a thread other than the main thread then there can be lots of problems.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com