About: http://webisa.webdatacommons.org/161918945

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	As others have said, you should use some method other than index number to identify the combo box item that corresponds to a given action; or, you can find the index with some programmatic logic and store that in a variable.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com