Input: Data compression
There is a close connection between machine learning and compression: a system that predicts the posterior probabilities of a sequence given its entire history can be used for optimal data compression (by using arithmetic coding on the output distribution) while an optimal compressor can be used for prediction (by finding the symbol that compresses best, given the previous history). This equivalence has been used as a justification for using data compression as a benchmark for "general intelligence."

What type of compressor can be used for prediction?
Output: optimal

Input: Tennessee
During Reconstruction, freedmen and former free people of color were granted the right to vote; most joined the Republican Party. Numerous African Americans were elected to local offices, and some to state office. Following Reconstruction, Tennessee continued to have competitive party politics. But in the 1880s, the white-dominated state government passed four laws, the last of which imposed a poll tax requirement for voter registration. These served to disenfranchise most African Americans, and their power in the Republican Party, the state, and cities where they had significant population was markedly reduced. In 1900 African Americans comprised 23.8 percent of the state's population, concentrated in Middle and West Tennessee. In the early 1900s, the state legislature approved a form of commission government for cities based on at-large voting for a few positions on a Board of Commission; several adopted this as another means to limit African-American political participation. In 1913 the state legislature enacted a bill enabling cities to adopt this structure without legislative approval.

In 1913, the Tennessee state legislature made which organizational structure the default form of city government in the state?
Output: Board of Commission

Input: Federalism
Federalism also finds expression in ecclesiology (the doctrine of the church). For example, presbyterian church governance resembles parliamentary republicanism (a form of political federalism) to a large extent. In Presbyterian denominations, the local church is ruled by elected elders, some of which are ministerial. Each church then sends representatives or commissioners to presbyteries and further to a general assembly. Each greater level of assembly has ruling authority over its constituent members. In this governmental structure, each component has some level of sovereignty over itself. As in political federalism, in presbyterian ecclesiology there is shared sovereignty.

What does each greater level of assembly have?
Output: authority over its constituent members

Input: Black people
From the late 19th century, the South used a colloquial term, the one-drop rule, to classify as black a person of any known African ancestry. This practice of hypodescent was not put into law until the early 20th century. Legally the definition varied from state to state. Racial definition was more flexible in the 18th and 19th centuries before the American Civil War. For instance, President Thomas Jefferson held persons who were legally white (less than 25% black) according to Virginia law at the time, but, because they were born to slave mothers, they were born into slavery, according to the principle of partus sequitur ventrem, which Virginia adopted into law in 1662.

When did Virginia adopt The Principle of Partus Sequitur Ventrem?
Output:
1662