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.

Example Input: Context : Idiotest (a portmanteau of ``idiot'' and ``test'' and stylized as Id!otest) is an American television game show broadcast by Game Show Network (GSN). 
Subject : Idiotest 
Relation : original network
Example Output: Which channel broadcast Idiotest?

Example Input: 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
Example Output: Which crime led to the conviction of Boston Charley?

Example Input: Context : Windows 10 was available in 190 countries and 111 languages upon its launch, and as part of efforts to ``re-engage'' with users in China, Microsoft also announced that it would partner with Qihoo and Tencent to help promote and distribute Windows 10 in China, and that Chinese PC maker Lenovo would provide assistance at its service centers and retail outlets for helping users upgrade to Windows 10. 
Subject : Windows 10 
Relation : based on
Example Output:
Which is the basis of Windows 10?