Definition: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Input: 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.
Answer : 1943
Output:
What year was Stormartillerivagn m/43 introduced?