Generate a correct and concise answer for the question based on the words in the context.
Example: 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 solution: Havana
Example explanation: According to context Issac Nicola's city of birth is Havana. Hence this is a correct output.

Problem: Context : Tomasz Mathea is a former Commander in Chief of the Polish Navy. 
Question : What military organization did Tomasz Mathea belong to?

Solution: Polish Navy