Input: Read this: Slow progress has led to frustration, expressed by executive director of the Global Fund to Fight AIDS, Tuberculosis and Malaria Mark Dybul: "we have the tools to end TB as a pandemic and public health threat on the planet, but we are not doing it." Several international organizations are pushing for more transparency in treatment, and more countries are implementing mandatory reporting of cases to the government, although adherence is often sketchy. Commercial treatment-providers may at times overprescribe second-line drugs as well as supplementary treatment, promoting demands for further regulations. The government of Brazil provides universal TB-care, which reduces this problem. Conversely, falling rates of TB-infection may not relate to the number of programs directed at reducing infection rates, but may be tied to increased level of education, income and health of the population. Costs of the disease, as calculated by the World Bank in 2009 may exceed 150 billion USD per year in "high burden" countries. Lack of progress eradicating the disease may also be due to lack of patient follow-up as among the 250M rural migrants in China.
Question: What population segment in China struggles to get follow-up care for TB infection?

Output: rural migrants

Input: Read this: Into the first half of the twentieth century after the establishment of ROC, Nanjing gradually shifted from being a production hub towards being a heavy consumption city, mainly because of the rapid expansion of its wealthy population after Nanjing once again regained the political spotlight of China. A number of huge department stores such as Zhongyang Shangchang sprouted up, attracting merchants from all over China to sell their products in Nanjing. In 1933, the revenue generated by the food and entertainment industry in the city exceeded the sum of the output of the manufacturing and agriculture industry. One third of the city population worked in the service industry, .
Question: How much of the population worked in a service capacity at that time?

Output: One third of the city population

Input: Read this: Prior to the designation of immunity from the etymological root immunis, which is Latin for "exempt"; early physicians characterized organs that would later be proven as essential components of the immune system. The important lymphoid organs of the immune system are the thymus and bone marrow, and chief lymphatic tissues such as spleen, tonsils, lymph vessels, lymph nodes, adenoids, and liver. When health conditions worsen to emergency status, portions of immune system organs including the thymus, spleen, bone marrow, lymph nodes and other lymphatic tissues can be surgically excised for examination while patients are still alive.
Question: Who originally discovered these parts of the immune system?

Output: early physicians

Input: Read this: As in other major American cities in the postwar era, construction of an extensive highway and freeway system around Detroit and pent-up demand for new housing stimulated suburbanization; highways made commuting by car easier. In 1956, Detroit's last heavily used electric streetcar line along the length of Woodward Avenue was removed and replaced with gas-powered buses. It was the last line of what had once been a 534-mile network of electric streetcars. In 1941 at peak times, a streetcar ran on Woodward Avenue every 60 seconds.
Question: How many seconds did a streetcar run along Woodward Ave in 1941?

Output:
60