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.

Context : Willie Earl Green was sent to prison in 1983 for the murder of a woman in a South Los Angeles crack house, but after a change in testimony, authorities released him from prison in March 2008.
Subject : Willie Earl Green
Relation : convicted of
Which crime Willie Earl Green is considered to have commited?

Context : Nicholas and Alexandra is a 1971 biographical film which partly tells the story of the last ruling Russian monarch, Tsar Nicholas II of Russia, and his wife, Tsarina Alexandra.
Subject : Nicholas and Alexandra
Relation : production company
What production company was involved in Nicholas and Alexandra?

Context : Once Upon a Song (Chinese: 201314), is a 2015 musical drama television series produced by Hong Kong Television Network.
Subject : Once Upon a Song
Relation : production company
What studio produced Once Upon a Song?