instruction:
You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
question:
Context : In 1961, the first M79 grenade launchers were delivered to the US Army. 
Subject : M79 grenade launcher 
Relation : service entry
answer:
Which was the official year for the approval of M79 grenade launcher?


question:
Context : Muppets Most Wanted is a 2014 American musical comedy film produced by Walt Disney Pictures and Mandeville Films, and the eighth theatrical film featuring the Muppets. 
Subject : Muppets Most Wanted 
Relation : narrative location
answer:
Which place is Muppets Most Wanted in?


question:
Context : On 13 September 2010, Conviasa Flight 2350, operated by an ATR 42-320, registration YV1010, crashed shortly before landing in Manuel Carlos Piar Guayana Airport, Ciudad Guayana, on a domestic scheduled passenger flight from Santiago Mariño International Airport, Porlamar, Isla Margarita, Venezuela killing 17 of the 51 people on board. 
Subject : Conviasa Flight 2350 
Relation : point in time
answer:

The point in time of Conviasa Flight 2350 was when?