About: http://webisa.webdatacommons.org/446562610

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	My query is, whether a thread other than main thread, can add a widget to the main window?
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com