In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Input: Consider Input: Which of the following did not occur in the 20th century: urbanization, the spread of the Ottoman Empire, or wars?, Context: South Slavic historically formed a dialect continuum, i.e. each dialect has some similarities with the neighboring one, and differences grow with distance. However, migrations from the 16th to 18th centuries resulting from the spread of Ottoman Empire on the Balkans have caused large-scale population displacement that broke the dialect continuum into many geographical pockets. Migrations in the 20th century, primarily caused by urbanization and wars, also contributed to the reduction of dialectal differences.

Output: spread of Ottoman Empire

Input: Consider Input: How do some of the past students still contribute to this day?, Context: While Harkness' original colleges were Georgian Revival or Collegiate Gothic in style, two colleges constructed in the 1960s, Morse and Ezra Stiles Colleges, have modernist designs. All twelve college quadrangles are organized around a courtyard, and each has a dining hall, courtyard, library, common room, and a range of student facilities. The twelve colleges are named for important alumni or significant places in university history. In 2017, the university expects to open two new colleges near Science Hill.

Output: colleges are named for important alumni

Input: Consider Input: What alumni was a proponent of regulatory capture theory?, Context: In economics, notable Nobel Memorial Prize in Economic Sciences winners Milton Friedman, a major advisor to Republican U.S. President Ronald Reagan and Conservative British Prime Minister Margaret Thatcher, George Stigler, Nobel laureate and proponent of regulatory capture theory, Gary Becker, an important contributor to the family economics branch of economics, Herbert A. Simon, responsible for the modern interpretation of the concept of organizational decision-making, Paul Samuelson, the first American to win the Nobel Memorial Prize in Economic Sciences, and Eugene Fama, known for his work on portfolio theory, asset pricing and stock market behaviour, are all graduates. American economist, social theorist, political philosopher, and author Thomas Sowell is also an alumnus.
Output: George Stigler