Problem: Please answer a question about the following article about Philadelphia:
In 1940, non-Hispanic whites constituted 86.8% of the city's population. The population peaked at more than two million residents in 1950, then began to decline with the restructuring of industry, which led to the loss of many middle-class union jobs. In addition, suburbanization had been drawing off many of the wealthier residents to outlying railroad commuting towns and newer housing. Revitalization and gentrification of neighborhoods began in the late 1970s and continues into the 21st century, with much of the development in the Center City and University City areas of the city. After many of the old manufacturers and businesses left Philadelphia or shut down, the city started attracting service businesses and began to more aggressively market itself as a tourist destination. Glass-and-granite skyscrapers were built in Center City. Historic areas such as Independence National Historical Park located in Old City and Society Hill were renovated during the reformist mayoral era of the 1950s through the 1980s. They are now among the most desirable living areas of Center City. This has slowed the city's 40-year population decline after it lost nearly one-quarter of its population.
What is another large industry?
A: a tourist destination

Question: Read this and answer the question

Following the American Revolutionary War, the United States faced potential military conflict on the high seas as well as on the western frontier. The United States was a minor military power during this time, having only a modest army, Marine corps, and navy. A traditional distrust of standing armies, combined with faith in the abilities of local militia, precluded the development of well-trained units and a professional officer corps. Jeffersonian leaders preferred a small army and navy, fearing that a large military establishment would involve the United States in excessive foreign wars, and potentially allow a domestic tyrant to seize power.

Why was the US military so small initially?
Answer: A traditional distrust of standing armies

Problem: Public expenditure health was at 8.9% of the GDP in 2004, whereas private expenditure was at 1.3%. As of 2012, the HIV/AIDS prevalence was at 2.8% among 15- to 49-year-olds. Health expenditure was at US$30 per capita in 2004. A large proportion of the population is undernourished, with malnutrition being a problem in Congo-Brazzaville. There were 20 physicians per 100,000 persons in the early 2000s (decade).
What was the overall incidence of HIV or AIDS throughout the 15 to 49 year old population?
The answer is the following: 2.8%

During the Age of Discovery in the 15th and 16th centuries, Portugal and Spain pioneered European exploration of the globe, and in the process established large overseas empires. Envious of the great wealth these empires generated, England, France, and the Netherlands began to establish colonies and trade networks of their own in the Americas and Asia. A series of wars in the 17th and 18th centuries with the Netherlands and France left England (and then, following union between England and Scotland in 1707, Great Britain) the dominant colonial power in North America and India.
In which centuries was the Age of Discovery?
15th and 16th centuries

Input: Dwight D. Eisenhower
In late 1952 Eisenhower went to Korea and discovered a military and political stalemate. Once in office, when the Chinese began a buildup in the Kaesong sanctuary, he threatened to use nuclear force if an armistice was not concluded. His earlier military reputation in Europe was effective with the Chinese. The National Security Council, the Joint Chiefs of Staff, and the Strategic Air Command (SAC) devised detailed plans for nuclear war against China. With the death of Stalin in early March 1953, Russian support for a Chinese hard-line weakened and China decided to compromise on the prisoner issue.

What was SAC an abbreviation of?
Output: Strategic Air Command

Problem: Please answer a question about the following article about Modern history:
From the 1880s to 1914, the European powers expanded their control across the African continent, competing with each other for Africa's land and resources. Great Britain controlled various colonial holdings in East Africa that spanned the length of the African continent from Egypt in the north to South Africa. The French gained major ground in West Africa, and the Portuguese held colonies in southern Africa. Germany, Italy, and Spain established a small number of colonies at various points throughout the continent, which included German East Africa (Tanganyika) and German Southwest Africa for Germany, Eritrea and Libya for Italy, and the Canary Islands and Rio de Oro in northwestern Africa for Spain. Finally, for King Leopold (ruled from 18651909), there was the large "piece of that great African cake" known as the Congo, which, unfortunately for the native Congolese, became his personal fiefdom to do with as he pleased in Central Africa. By 1914, almost the entire continent was under European control. Liberia, which was settled by freed American slaves in the 1820s, and Abyssinia (Ethiopia) in eastern Africa were the last remaining independent African states. (John Merriman, A History of Modern Europe, Volume Two: From the French Revolution to the Present, Third Edition (New York: W. W. Norton & Company, 2010), pp. 819859).
Where in Africa did Portuguese have control?
A:
southern Africa