Input: Planck constant
The assumption that black-body radiation is thermal leads to an accurate prediction: the total amount of emitted energy goes up with the temperature according to a definite rule, the StefanBoltzmann law (187984). But it was also known that the colour of the light given off by a hot object changes with the temperature, so that "white hot" is hotter than "red hot". Nevertheless, Wilhelm Wien discovered the mathematical relationship between the peaks of the curves at different temperatures, by using the principle of adiabatic invariance. At each different temperature, the curve is moved over by Wien's displacement law (1893). Wien also proposed an approximation for the spectrum of the object, which was correct at high frequencies (short wavelength) but not at low frequencies (long wavelength). It still was not clear why the spectrum of a hot object had the form that it has (see diagram).

What law describes the changes in light emitted by a hot object?
Output: StefanBoltzmann law

Input: Greece
With an economy larger than all the Balkan economies combined, Greece is the largest economy in the Balkans, and an important regional investor. Greece is the number-two foreign investor of capital in Albania, the number-three foreign investor in Bulgaria, at the top-three of foreign investors in Romania and Serbia and the most important trading partner and largest foreign investor of the Republic of Macedonia. Greek banks open a new branch somewhere in the Balkans on an almost weekly basis. The Greek telecommunications company OTE has become a strong investor in Yugoslavia and other Balkan countries.

What rank does Greece hold as an Albania investor?
Output: number-two

Input: North Carolina
Democrats were elected to the legislature and governor's office, but the Populists attracted voters displeased with them. In 1896 a biracial, Populist-Republican Fusionist coalition gained the governor's office. The Democrats regained control of the legislature in 1896 and passed laws to impose Jim Crow and racial segregation of public facilities. Voters of North Carolina's 2nd congressional district elected a total of four African-American congressmen through these years of the late 19th century.

What political party was elected to the legislature and Governors office?
Output: Democrats

Input: Adolescence
Despite changing family roles during adolescence, the home environment and parents are still important for the behaviors and choices of adolescents. Adolescents who have a good relationship with their parents are less likely to engage in various risk behaviors, such as smoking, drinking, fighting, and/or unprotected sexual intercourse. In addition, parents influence the education of adolescence. A study conducted by Adalbjarnardottir and Blondal (2009) showed that adolescents at the age of 14 who identify their parents as authoritative figures are more likely to complete secondary education by the age of 22as support and encouragement from an authoritative parent motivates the adolescence to complete schooling to avoid disappointing that parent.

Which researchers conducted a 2009 study that concerned adolescents, their parents, and secondary education completion?
Output:
Adalbjarnardottir and Blondal