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.

[Q]: Context : Walter Grabmann (20 September 1905 -- 20 August 1992) was a German World War II Luftwaffe Generalmajor. 
Answer : World War II
[A]: In which war did Walter Grabmann participate?


[Q]: Context : Novatek and Gazprom plan to build a liquefied natural gas plant in Yamalo-Nenets Autonomous Okrug. 
Answer : Gazprom
[A]: What company is Novatek part of?


[Q]: Context : UniFirst Corporation is a uniform rental company based in Wilmington, Massachusetts, United States, that manufactures, sells, and rents uniforms and protective clothing. 
Answer : uniform
[A]:
The product of UniFirst is what?