Question: Read this and answer the question

Colonial records of French and Spanish slave ships and sales, and plantation records in all the former colonies, often have much more information about slaves, from which researchers are reconstructing slave family histories. Genealogists have begun to find plantation records, court records, land deeds and other sources to trace African-American families and individuals before 1870. As slaves were generally forbidden to learn to read and write, black families passed along oral histories, which have had great persistence. Similarly, Native Americans did not generally learn to read and write English, although some did in the nineteenth century. Until 1930, census enumerators used the terms free people of color and mulatto to classify people of apparent mixed race. When those terms were dropped, as a result of the lobbying by the Southern Congressional bloc, the Census Bureau used only the binary classifications of black or white, as was typical in segregated southern states.

Who caused the Census Burea to drop the terms free people of color and mulatto?
Answer: Southern Congressional bloc

Problem: The Roland Levinsky building, the landmark building of the University of Plymouth, is located in the city's central quarter. Designed by leading architect Henning Larsen, the building was opened in 2008 and houses the University's Arts faculty. It has been consistently considered one of the UK's most beautiful university buildings.
Who designed the Roland Levinsky building?
The answer is the following: Henning Larsen

The output of goods and services produced by labor and property located in the United Statesdecreased at an annual rate of approximately 6% in the fourth quarter of 2008 and first quarter of 2009, versus activity in the year-ago periods. The U.S. unemployment rate increased to 10.1% by October 2009, the highest rate since 1983 and roughly twice the pre-crisis rate. The average hours per work week declined to 33, the lowest level since the government began collecting the data in 1964. With the decline of gross domestic product came the decline in innovation. With fewer resources to risk in creative destruction, the number of patent applications flat-lined. Compared to the previous 5 years of exponential increases in patent application, this stagnation correlates to the similar drop in GDP during the same time period.
What was the average hours per work week in October 2009?
33

Input: Renewable energy commercialization
According to the International Energy Agency, cellulosic ethanol biorefineries could allow biofuels to play a much bigger role in the future than organizations such as the IEA previously thought. Cellulosic ethanol can be made from plant matter composed primarily of inedible cellulose fibers that form the stems and branches of most plants. Crop residues (such as corn stalks, wheat straw and rice straw), wood waste, and municipal solid waste are potential sources of cellulosic biomass. Dedicated energy crops, such as switchgrass, are also promising cellulose sources that can be sustainably produced in many regions.

What are potential sources of cellulosic biomass?
Output: Crop residues

Input: Article: Northwestern is privately owned and is governed by an appointed Board of Trustees. The board, composed of 70 members and as of 2011[update] chaired by William A. Osborn '69, delegates its power to an elected president to serve as the chief executive officer of the university. Northwestern has had sixteen presidents in its history (excluding interim presidents), the current president, Morton O. Schapiro, an economist, having succeeded Henry Bienen whose 14-year tenure ended on August 31, 2009. The president has a staff of vice presidents, directors, and other assistants for administrative, financial, faculty, and student matters. Daniel I. Linzer, provost since September 2007, serves under the president as the chief academic officer of the university to whom the deans of every academic school, leaders of cross-disciplinary units, and chairs of the standing faculty committee report.

Now answer this question: Who governs Northwestern?

Output: an appointed Board of Trustees

Problem: Jiangsu Province Kun Opera is one of the best theatres for Kunqu, China's oldest stage art. It is considered a conservative and traditional troupe. Nanjing also has professional opera troupes for the Yang, Yue (shaoxing), Xi and Jing (Chinese opera varieties) as well as Suzhou pingtan, spoken theatre and puppet theatre.
What other types of theater performance are seen in Nanjing?
The answer is the following:
Suzhou pingtan, spoken theatre and puppet theatre