context: Blue banana or European spine; ; ; It is a region with a persistent urban corridor in Western Europe, inhabited by approximately 90 million people. It stretches from the north of England in the north, to Milan in the south. This region covers many cities such as: London, Brussels, Amsterdam, Cologne, Frankfurt, Luxembourg, Stuttgart, Strasbourg, Zurich and Milan. One of the most concentrated gatherings covers the world's population, money and industries. [1] [2] The idea arose and developed in 1989 by one of the French geographic consultants, Roger Brunet. [3]
question: What is a blue banana or a European backbone?
answers.text: region with a persistent urban corridor in Western Europe, inhabited by approximately 90 million people. It stretches from the north of England in the north, to Milan in the south