Generate a correct and concise answer for the question based on the words in the context.

Example 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.
Question : What was Isaac Nicola's city of birth?
Example output: Havana
Example explanation: According to context Issac Nicola's city of birth is Havana. Hence this is a correct output.
Q: Context : The 1984 Balkan Bulgarian Tupolev Tu-134 crash occurred on 10 January 1984 when a Balkan Bulgarian Airlines Tupolev Tu-134 airliner crashed on an international flight from Berlin Schonefeld Airport in Schonefeld, East Germany, to Sofia Airport in Sofia, Bulgaria.
Question : When did 1984 Balkan Bulgarian Tupolev Tu-134 crash occur?
A:
10 January 1984