Task: Question Answering
Input (English): Context : Stormartillerivagn m/43 (Sav m/43) (English: Assault artillery wagon model 1943) was an assault gun based on Stridsvagn m/41 SII chassis, a Swedish development of a license-built Czech TNH medium tank. 
Question : What year was Stormartillerivagn m/43 introduced?
Output (English): 1943