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: Consider Input: Context : Harry Reeks was born in Covington, Louisiana. 
Answer : Louisiana

Output: What city is Harry Reeks from?


Input: Consider Input: Context : Nikola Kalabić (until the start of World War II) worked in Land-registry management in Valjevo. 
Answer : World War II

Output: In what war was Nikola Kalabić a combatant?


Input: Consider Input: Context : The PTRD-41 (Shortened from Russian, ProtivoTankovoye Ruzhyo Degtyaryova;Противотанковое однозарядное ружьё системы Дегтярёва образца 1941 года;``Degtyaryov Anti-Tank Rifle'') was an anti-tank rifle produced and used from early 1941 by the Soviet Red Army during World War II. It was a single-shot weapon which fired a 14.5×114mm round. 
Answer : 1941


Output: What was the year that PTRD entered service?