Task: Question Answering
Input (English): Context: Siedlce Voivodeship (Polish: wojewodztwo siedleckie) was a unit of administrative division and local government in Poland in years 1975--1998, superseded by Masovian Voivodeship and Lublin Voivodeship. 
 Question: When was Siedlce Voivodeship abolished?
Output (English): 1998