Problem: Many of the world's largest media conglomerates are also based in the city. Manhattan contained over 500 million square feet (46.5 million m2) of office space in 2015, making it the largest office market in the United States, while Midtown Manhattan, with nearly 400 million square feet (37.2 million m2) in 2015, is the largest central business district in the world.
About how many million square feet of office space is present in Midtown Manhattan?
The answer is the following: 400

The classical period of Greek civilization covers a time spanning from the early 5th century BC to the death of Alexander the Great, in 323 BC (some authors prefer to split this period into 'Classical', from the end of the Persian wars to the end of the Peloponnesian War, and 'Fourth Century', up to the death of Alexander). It is so named because it set the standards by which Greek civilization would be judged in later eras. The Classical period is also described as the "Golden Age" of Greek civilization, and its art, philosophy, architecture and literature would be instrumental in the formation and development of Western culture.
What is so well known about this period ?
It is so named because it set the standards by which Greek civilization would be judged in later eras

Input: Paris
The Bibliotheque nationale de France (BnF) operates public libraries in Paris, among them the Francois Mitterrand Library, Richelieu Library, Louvois, Opera Library, and Arsenal Library. There are three public libraries in the 4th arrondissement. The Forney Library, in the Marais district, is dedicated to the decorative arts; the Arsenal Library occupies a former military building, and has a large collection on French literature; and the Bibliotheque historique de la ville de Paris, also in Le Marais, contains the Paris historical research service. The Sainte-Genevieve Library is in 5th arrondissement; designed by Henri Labrouste and built in the mid-1800s, it contains a rare book and manuscript division. Bibliotheque Mazarine, in the 6th arrondissement, is the oldest public library in France. The Mediatheque Musicale Mahler in the 8th arrondissement opened in 1986 and contains collections related to music. The Francois Mitterrand Library (nicknamed Tres Grande Bibliotheque) in the 13th arrondissement was completed in 1994 to a design of Dominique Perrault and contains four glass towers.

Who operates the public libraries in Paris?
Output: Bibliotheque nationale de France

Input: Article: The political situation in England rapidly began to deteriorate. Longchamp refused to work with Puiset and became unpopular with the English nobility and clergy. John exploited this unpopularity to set himself up as an alternative ruler with his own royal court, complete with his own justiciar, chancellor and other royal posts, and was happy to be portrayed as an alternative regent, and possibly the next king. Armed conflict broke out between John and Longchamp, and by October 1191 Longchamp was isolated in the Tower of London with John in control of the city of London, thanks to promises John had made to the citizens in return for recognition as Richard's heir presumptive. At this point Walter of Coutances, the Archbishop of Rouen, returned to England, having been sent by Richard to restore order. John's position was undermined by Walter's relative popularity and by the news that Richard had married whilst in Cyprus, which presented the possibility that Richard would have legitimate children and heirs.

Now answer this question: Who refused to work with Puiset?

Output: Longchamp

Article: London's defences were rapidly reorganised by General Pile, the Commander-in-Chief of Anti-Aircraft Command. The difference this made to the effectiveness of air defences is questionable. The British were still one-third below the establishment of heavy anti-aircraft artillery AAA (or ack-ack) in May 1941, with only 2,631 weapons available. Dowding had to rely on night fighters. From 1940 to 1941, the most successful night-fighter was the Boulton Paul Defiant; its four squadrons shot down more enemy aircraft than any other type. AA defences improved by better use of radar and searchlights. Over several months, the 20,000 shells spent per raider shot down in September 1940, was reduced to 4,087 in January 1941 and to 2,963 shells in February 1941.

Question: Who's four squadrons shot down more enemy aircraft than any other type?
Ans: Boulton Paul Defiant

Input: Anti-aircraft warfare
Germany's high-altitude needs were originally going to be filled by a 75 mm gun from Krupp, designed in collaboration with their Swedish counterpart Bofors, but the specifications were later amended to require much higher performance. In response Krupp's engineers presented a new 88 mm design, the FlaK 36. First used in Spain during the Spanish Civil War, the gun proved to be one of the best anti-aircraft guns in the world, as well as particularly deadly against light, medium, and even early heavy tanks.

Where was the first place the FlaK 36 was used?
Output:
Spain