Q: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Context: The city is home of the International Balloon Fiesta, the world's largest gathering of hot-air balloons, taking place every October. Link Information: The Balloon Fiesta began in 1972 Question: How long has the annual event that takes place in October been going on?
A:
Answer: 48