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 : Born on 26 July 1872, Frederick Walshe was educated at Bedford School and at Royal Military Academy, Woolwich. 
Subject : Frederick Walshe 
Relation : educated at
Example Output: What is the university where Frederick Walshe went?

Example Input: Context : Delta Air Lines Flight 9570 crashed on 30 May 1972 at the Greater Southwest International Airport in Fort Worth, Texas, while conducting a training flight. 
Subject : Delta Air Lines Flight 9570 
Relation : point in time
Example Output: The date of Delta Air Lines Flight 9570?

Example Input: Context : The QBZ-95 (Chinese: 95式自动步枪; pinyin: 95 Shì Zìdòng Bùqiāng; literally: ``Type 95 Automatic Rifle'') is a bullpup style assault rifle manufactured by Arsenal 266, part of Norinco and Arsenal 296, under Jianshe Corp, China South for the People's Liberation Army, the armed forces of the People's Republic of China, Chinese People's Armed Police (para-military police), and Chinese law enforcement. 
Subject : QBZ-95 
Relation : service entry
Example Output:
In what year did QBZ-95 enter service?