Context: Most of the world's airports are owned by local, regional, or national government bodies who then lease the airport to private corporations who oversee the airport's operation. For example, in the United Kingdom the state-owned British Airports Authority originally operated eight of the nation's major commercial airports - it was subsequently privatized in the late 1980s, and following its takeover by the Spanish Ferrovial consortium in 2006, has been further divested and downsized to operating just five. Germany's Frankfurt Airport is managed by the quasi-private firm Fraport. While in India GMR Group operates, through joint ventures, Indira Gandhi International Airport and Rajiv Gandhi International Airport. Bengaluru International Airport and Chhatrapati Shivaji International Airport are controlled by GVK Group. The rest of India's airports are managed by the Airports Authority of India.

Question: How many commercial airports did the British Airports Authority originally operate?
Answer: eight

Question: What group took over the British Airports Authority in 2006?
Answer: Spanish Ferrovial consortium

Question: What group manages the Frankfurt Airport?
Answer: Fraport

Question: Who operates, through joint ventures, Indira Gandhi International Airport?
Answer: GMR Group

Question: When was the Airports Authority of India privatized?
Answer: Unanswerable

Question: In what year was the Airports Authority of India taken over by the Spanish Ferrovial consortium?
Answer: Unanswerable

Question: How many commercial airports does Fraport in the UK manage?
Answer: Unanswerable

Question: How many airports did Fraport manage originally in the UK?
Answer: Unanswerable

Question: What happened to Fraport when it was taken over by the Spanish Ferrovial consortium?
Answer: Unanswerable