About: http://webisa.webdatacommons.org/80413612

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	If your answer_timer is a WinForm timer control (System.Windows.Forms.Timer), then you cannot start it from any thread other than the UI thread.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com