Input: The Blitz
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.

What is believed to have caused many civilian casualties from anti-aircraft guns?
Output: falling shell fragments


Input: Article: Acid house arose from Chicago artists' experiments with the squelchy Roland TB-303 bass synthesizer, and the style's origins on vinyl is generally cited as Phuture's "Acid Tracks" (1987). Phuture, a group founded by Nathan "DJ Pierre" Jones, Earl "Spanky" Smith Jr., and Herbert "Herb J" Jackson, is credited with having been the first to use the TB-303 in the house music context. The group's 12-minute "Acid Tracks" was recorded to tape and was played by DJ Ron Hardy at the Music Box, where Hardy was resident DJ. Hardy once played it four times over the course of an evening until the crowd responded favorably. The track also utilized a Roland TR-707 drum machine.

Now answer this question: what instrument was Phuture the first to use in house music?

Output: TB-303


Article: World production of duck meat was about 4.2 million tonnes in 2011 with China producing two thirds of the total, some 1.7 billion birds. Other notable duck-producing countries in the Far East include Vietnam, Thailand, Malaysia, Myanmar, Indonesia and South Korea (12% in total). France (3.5%) is the largest producer in the West, followed by other EU nations (3%) and North America (1.7%). China was also by far the largest producer of goose and guinea fowl meat, with a 94% share of the 2.6 million tonne global market.

Question: Who is the largest producer of duck meat among the western nations?
Ans: France (3.5%) is the largest producer in the West,


Here is a question about this article: Humanistic psychology is a psychological perspective which rose to prominence in the mid-20th century in response to Sigmund Freud's psychoanalytic theory and B. F. Skinner's Behaviorism. The approach emphasizes an individual's inherent drive towards self-actualization and creativity. Psychologists Carl Rogers and Abraham Maslow introduced a positive, humanistic psychology in response to what they viewed as the overly pessimistic view of psychoanalysis in the early 1960s. Other sources include the philosophies of existentialism and phenomenology.
What is the answer to this question: What is human phycology?
****
So... psychological perspective


The problem: Answer a question about this article:
Present-day Mali was once part of three West African empires that controlled trans-Saharan trade: the Ghana Empire, the Mali Empire (for which Mali is named), and the Songhai Empire. During its golden age, there was a flourishing of mathematics, astronomy, literature, and art. At its peak in 1300, the Mali Empire covered an area about twice the size of modern-day France and stretched to the west coast of Africa. In the late 19th century, during the Scramble for Africa, France seized control of Mali, making it a part of French Sudan. French Sudan (then known as the Sudanese Republic) joined with Senegal in 1959, achieving independence in 1960 as the Mali Federation. Shortly thereafter, following Senegal's withdrawal from the federation, the Sudanese Republic declared itself the independent Republic of Mali. After a long period of one-party rule, a coup in 1991 led to the writing of a new constitution and the establishment of Mali as a democratic, multi-party state.
What year did Mali gain independence as the Mali Federation?
****
The answer: 1960


The problem: Answer a question about this article:
Mali (i/ˈmɑːli/; French: [maˈli]), officially the Republic of Mali (French: République du Mali), is a landlocked country in West Africa. Mali is the eighth-largest country in Africa, with an area of just over 1,240,000 square kilometres (480,000 sq mi). The population of Mali is 14.5 million. Its capital is Bamako. Mali consists of eight regions and its borders on the north reach deep into the middle of the Sahara Desert, while the country's southern part, where the majority of inhabitants live, features the Niger and Senegal rivers. The country's economy centers on agriculture and fishing. Some of Mali's prominent natural resources include gold, being the third largest producer of gold in the African continent, and salt. About half the population lives below the international poverty line of $1.25 (U.S.) a day. A majority of the population (55%) are non-denominational Muslims.
Besides salt what other major natural resources does Mali produce?
****
The answer:
prominent natural resources include gold