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.
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Question: Context : Kepler-69 (KOI-172, 2MASS J19330262+4452080, KIC 8692861) is a G-type main-sequence star similar to the Sun in the constellation Cygnus, located about 2,700 ly (830 pc) from Earth. 
Subject : Kepler-69 
Relation : constellation

Answer: What constellation is Kepler-69 a part of?


Question: Context : A pillar from Mathura referring to Chandragupta II has recently been dated to 388 CE. Chandragupta II's daughter, Prabhavatigupta, by his Naga queen Kuberanaga was married to the powerful Vakataka dynasty ruler Rudrasena II (r.380-385 CE). 
Subject : Chandragupta II 
Relation : spouse

Answer: What is Chandragupta II's spouse's name?


Question: Context : The M1 Abrams entered U.S. service in 1980, replacing the M60 tank. 
Subject : M1 Abrams 
Relation : service entry

Answer:
In what year did M1 Abrams enter service?