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.

Q: Context : All is Safely Gathered In is the eighth episode of the fifth series of the British comedy series Dad's Army. 
Subject : All is Safely Gathered In 
Relation : series

A: Of what series is All is Safely Gathered In a part of?
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Q: Context : On October 3, 1873, Boston Charley, Kintpuash, Schonchin John and Black Jim were executed for the murder of Edward Canby. 
Subject : Boston Charley 
Relation : convicted of

A: Which crime led to the conviction of Boston Charley?
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Q: Context : The ARL 44s equipped the 503e Régiment de Chars de Combat stationed in Mourmelon-le-Grand and before the end of 1950 replaced seventeen Panther tanks used earlier by that unit. 
Subject : ARL 44 
Relation : service entry

A:
Which was the official year for the approval of ARL 44?
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