In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

[Q]: The Battle of Vimy Ridge was a military engagement fought primarily as part of the Battle of Arras, in the Nord-Pas-de-Calais region of France, during the First World War. The main combatants were the Canadian Corps, of four divisions, against three divisions of the German Sixth Army. The battle, which took place from 9 to 12 April 1917, was part of the opening phase of the British-led Battle of Arras, a diversionary attack for the French Nivelle Offensive.
[A]: when did the battle of vimy ridge start


[Q]: Germany's overseas empire was dismantled following defeat in World War I. With the concluding Treaty of Versailles, Article 22, German colonies were transformed into League of Nations mandates and divided between Belgium, the United Kingdom, and certain British Dominions, France and Japan with the determination not to see any of them returned to Germany -- a guarantee secured by Article 119.
[A]: what happened to germany's colonies after ww1


[Q]: Doom (typeset as DOOM in official documents) is a 1993 science fiction horror-themed first-person shooter (FPS) video game by id Software. It is considered one of the most significant and influential titles in video game history, for having helped to pioneer the now-ubiquitous first-person shooter. The original game was divided into three nine-level episodes and was distributed via shareware and mail order. The Ultimate Doom, an updated release of the original game featuring a fourth episode, was released in 1995 and sold at retail.
[A]:
how many levels are in the original doom