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 : We Didn't Mean to Go to Sea is the seventh book in Arthur Ransome's Swallows and Amazons series of children's books. 
Subject : We Didn't Mean to Go to Sea 
Relation : series
[A]: What is the series called that We Didn't Mean to Go to Sea belongs to?


[Q]: Context : Hans Lotter (17 November 1917 -- 21 November 2008) was a highly decorated Oberleutnant in the Luftwaffe during World War II, and a recipient of the Knight's Cross of the Iron Cross. 
Subject : Hans Lotter 
Relation : military branch
[A]: In what military branch did Hans Lotter serve?


[Q]: Context : At GenCon 22 in 1989, Erick Wujcik introduced James Wallis to Kevin Siembieda of Palladium; the result was Wallis' entry into the world of RPG supplement publication through Mutants in Avalon (1990) and Mutants in Orbit (1992). 
Subject : Mutants in Orbit 
Relation : series
[A]:
Which series is Mutants in Orbit apart of?