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Paris' disconnect with its suburbs, its lack of suburban transportation in particular, became all too apparent with the Paris agglomeration's growth. Paul Delouvrier promised to resolve the Paris-suburbs mesentente when he became head of the Paris region in 1961: two of his most ambitious projects for the Region were the construction of five suburban villes nouvelles ("new cities") and the RER commuter train network. Many other suburban residential districts (grands ensembles) were built between the 1960s and 1970s to provide a low-cost solution for a rapidly expanding population: these districts were socially mixed at first, but few residents actually owned their homes (the growing economy made these accessible to the middle classes only from the 1970s). Their poor construction quality and their haphazard insertion into existing urban growth contributed to their desertion by those able to move elsewhere and their repopulation by those with more limited possibilities.
When did Paul Delouvrier become the head of the Paris region?
A: 1961

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Beginning around 2005, drug traffickers based in Latin America began to use Guinea-Bissau, along with several neighboring West African nations, as a transshipment point to Europe for cocaine. The nation was described by a United Nations official as being at risk for becoming a "narco-state". The government and the military have done little to stop drug trafficking, which increased after the 2012 coup d'etat.
What was the final destination of the drugs going through Guinea-Bissau?
A: Europe

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As of 2015[update], Nigeria is the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively. It overtook South Africa to become Africa's largest economy in 2014. Also, the debt-to-GDP ratio is only 11 percent, which is 8 percent below the 2012 ratio. Nigeria is considered to be an emerging market by the World Bank; It has been identified as a regional power on the African continent, a middle power in international affairs, and has also been identified as an emerging global power. Nigeria is a member of the MINT group of countries, which are widely seen as the globe's next "BRIC-like" economies. It is also listed among the "Next Eleven" economies set to become among the biggest in the world. Nigeria is a founding member of the Commonwealth of Nations, the African Union, OPEC, and the United Nations amongst other international organisations.
What is Nigeria's 2015 GDP?
A: $500 billion

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British night air defences were in a poor state. Few anti-aircraft guns had fire-control systems, and the underpowered searchlights were usually ineffective against aircraft at altitudes above 12,000 ft (3,700 m). In July 1940, only 1,200 heavy and 549 light guns were deployed in the whole of Britain. Of the "heavies", some 200 were of the obsolescent 3 in (76 mm) type; the remainder were the effective 4.5 in (110 mm) and 3.7 in (94 mm) guns, with a theoretical "ceiling"' of over 30,000 ft (9,100 m) but a practical limit of 25,000 ft (7,600 m) because the predictor in use could not accept greater heights. The light guns, about half of which were of the excellent Bofors 40 mm, dealt with aircraft only up to 6,000 ft (1,800 m). Although the use of the guns improved civilian morale, with the knowledge the German bomber crews were facing the barrage, it is now believed that the anti-aircraft guns achieved little and in fact the falling shell fragments caused more British casualties on the ground.
British night air defenses were effective to what height?
A:
12,000 ft (3,700 m)