In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.

Q: Context: Golovin was taken to Stockholm and remained there for the next 18 years Link Information: Stockholm () is the capital of Sweden Answer: Sweden 

A: What country is Stockholm located in?
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Q: Context: Shaw was born on 13 July 1930 Link Information: Founded in 1853  Answer: 77

A: How long had Epsom College been in existence for the year Shaw was born?
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Q: Context: Some time later, due to his good fluency in English, he was placed in the press office of Kaúlza de Arriaga, the commander in chief of the Portuguese Armed Forces in Mozambique, who had coordinated a massive anti-guerrilla operation against FRELIMO separatists in 1970 - the Gordian Knot Operation. Link Information: Kaúlza de Oliveira de Arriaga, , , , (18 January 1915 – 2 February 2004) Answer: 55

A:
How old was the commander in chief when he coordinated a massive anti-guerrilla operation?
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