[Q]: Extract the answer to the question from the following context. Question: What is land that is good for growing? Context: During the 1930s, parts of the state began suffering the consequences of poor farming practices, extended drought and high winds. Known as the Dust Bowl, areas of Kansas, Texas, New Mexico and northwestern Oklahoma were hampered by long periods of little rainfall and abnormally high temperatures, sending thousands of farmers into poverty and forcing them to relocate to more fertile areas of the western United States. Over a twenty-year period ending in 1950, the state saw its only historical decline in population, dropping 6.9 percent as impoverished families migrated out of the state after the Dust Bowl.
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[A]: fertile

input: Please answer the following: Extract the answer to the question from the following context. Question: __ was born Gaynor Hopkins Context: Mainstream AC itself has evolved in a similar fashion over the years; traditional AC artists like Barbra Streisand, the Carpenters, Dionne Warwick, Barry Manilow, John Denver, and Olivia Newton-John found it harder to have major Top 40 hits as the 1980s wore on, and due to the influence of MTV, artists who were staples of the Contemporary Hit Radio format, such as Richard Marx, Michael Jackson, Bonnie Tyler, George Michael, Phil Collins, and Laura Branigan began crossing over to the AC charts with greater frequency. Collins has been described by AllMusic as "one of the most successful pop and adult contemporary singers of the '80s and beyond". However, with the combination of MTV and AC radio, adult contemporary appeared harder to define as a genre, with established soft-rock artists of the past still charting pop hits and receiving airplay alongside mainstream radio fare from newer artists at the time.
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output: Bonnie Tyler

Please answer this: Extract the answer to the question from the following context. Question: What controlled politics in the continent beforehand? Context: The Crimean War marked the ascendancy of France to the position of pre-eminent power on the Continent,:411 the continued decline of the Ottoman Empire, and the beginning of a decline for Tsarist Russia. As Fuller notes, "Russia had been beaten on the Crimean peninsula, and the military feared that it would inevitably be beaten again unless steps were taken to surmount its military weakness." The Crimean War marks the demise of the Concert of Europe, the balance of power that had dominated Europe since the Congress of Vienna in 1815, and which had included France, Russia, Austria and the United Kingdom.
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Answer: the Concert of Europe

Problem: Extract the answer to the question from the following context. Question: An autonomous community located in the northeastern part of Spain that includes Barcelona is called? Context: In the early 20th century came another turn toward nationalist politics with Solidaridad Gallega (1907–1912) modeled on Solidaritat Catalana in Catalonia. Solidaridad Gallega failed, but in 1916 Irmandades da Fala (Brotherhood of the Language) developed first as a cultural association but soon as a full-blown nationalist movement. Vicente Risco and Ramón Otero Pedrayo were outstanding cultural figures of this movement, and the magazine Nós ('Us'), founded 1920, its most notable cultural institution, Lois Peña Novo the outstanding political figure.

A: Catalonia

Problem: Given the question: Extract the answer to the question from the following context. Question: What is required to be linear? Context: A necessary condition for the aforementioned reciprocity property is that the materials in the antenna and transmission medium are linear and reciprocal. Reciprocal (or bilateral) means that the material has the same response to an electric current or magnetic field in one direction, as it has to the field or current in the opposite direction. Most materials used in antennas meet these conditions, but some microwave antennas use high-tech components such as isolators and circulators, made of nonreciprocal materials such as ferrite. These can be used to give the antenna a different behavior on receiving than it has on transmitting, which can be useful in applications like radar.
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The answer is:
materials in the antenna and transmission medium

Problem: Extract the answer to the question from the following context. Question: In the case of multilateral treaties, the usual procedure is for the depositary to collect the__ of all states Context: After their adoption, treaties as well as their amendments have to follow the official legal procedures of the United Nations, as applied by the Office of Legal Affairs, including signature, ratification and entry into force.

A:
ratification