Definition: 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.

Positive Example 1 -
Input: Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School. 
Subject : Isaac Nicola 
Relation : place of birth
Output: What was Isaac Nicola's city of birth?

Positive Example 2 -
Input: Context : Both Timur and Demir are popular male names in Turkey today. 
Subject : Timur 
Relation : noble title
Output: What was the title that Timur held?

Negative Example 1 -
Input: Context : The Boeing 601 (sometimes referred to as the BSS-601, and previously as the HS-601) is a communications satellite bus introduced in 1987 by Hughes Space and Communications Company. 
Subject : Boeing 601 
Relation : service entry
Output: What is Boeing 601?

Negative Example 2 -
Input: Context : In 1956 and 1957, the British and Commonwealth system of battle honours recognised participation in the Battle of Villers-Bocage by the award to 11 units of the battle honour Villers Bocage, for service in expanding the bridgehead from 8--15 June. 
Subject : Battle of Villers-Bocage 
Relation : point in time
Output: who recognised participation in the Battle of Villers-Bocage?

Now complete the following example -
Input: Context : the German Army (1940) forbade the firing of more than 250 rounds in a single burst and indicated a sustained rate of no more than 300--350 rounds per minute to minimize barrel wear and overheating, although the excellent quick-change barrel design helped a great deal. Burst limits are typical on non-water-cooled automatic weapons, and slower-firing Allied guns such as the M1919 also had limits; they fired at a slower rate, but lacked a quick-change barrel, and so the operator had to limit his fire to a few hundred rounds per minute to allow the barrel to cool between bursts. Due to the slower firing rate, this led to a longer period of time spent shooting, but a roughly equivalent total number of rounds fired. Operationally, the MG 42's main drawback was that it could consume ammunition at such a high rate that it was very difficult to keep firing during offensive actions, because ammunition had to be carried forward on a continuous basis. This was also a problem at the end of the war with inexperienced German troops, good fire discipline was a must and the level of training that the German infantry was receiving was poor. The method of barrel change made the MG 42 unsuitable for secondary or co-axial armament on World War II era German tanks with the exception 
Subject : MG 42 
Relation : service entry
Output: 


Output: In what year did MG 42 enter service?