Input: Alfred North Whitehead
Whitehead did not begin his career as a philosopher. In fact, he never had any formal training in philosophy beyond his undergraduate education. Early in his life he showed great interest in and respect for philosophy and metaphysics, but it is evident that he considered himself a rank amateur. In one letter to his friend and former student Bertrand Russell, after discussing whether science aimed to be explanatory or merely descriptive, he wrote: "This further question lands us in the ocean of metaphysic, onto which my profound ignorance of that science forbids me to enter." Ironically, in later life Whitehead would become one of the 20th century's foremost metaphysicians.

What is the relationship between Whitehead and Russell?
Output: friend and former student

Input: Montevideo
Parque Batlle is named in honour of Jose Batlle y Ordonez, President of Uruguay from 1911 to 1915. The park was originally proposed by an Act of March 1907, which also projected wide boulevards and avenues. French landscape architect, Carlos Thays, began the plantings in 1911. In 1918, the park was named Parque de los Aliados, following the victory of the Allies of World War I. On 5 May 1930, after significant expansion, it was again renamed as Parque Batlle y Ordonez, in memory of the prominent politician and president, who had died in 1929. The park was designated a National Historic Monument Park in 1975. As of 2010[update], the park covers an area of 60 hectares (150 acres) and is considered the "lung" of the Montevideo city due to the large variety of trees planted here.

Jose Batile y Ordonez was president of where?
Output: Uruguay

Input: Modern history
The modern petroleum industry started in 1846 with the discovery of the process of refining kerosene from coal by Nova Scotian Abraham Pineo Gesner. Ignacy ukasiewicz improved Gesner's method to develop a means of refining kerosene from the more readily available "rock oil" ("petr-oleum") seeps in 1852 and the first rock oil mine was built in Bobrka, near Krosno in Galicia in the following year. In 1854, Benjamin Silliman, a science professor at Yale University in New Haven, was the first to fractionate petroleum by distillation. These discoveries rapidly spread around the world.

What started the modern petroleum industry ?
Output: the discovery of the process of refining kerosene from coal

Input: Great Plains
During the Cenozoic era, specifically about 25 million years ago during the Miocene and Pliocene epochs, the continental climate became favorable to the evolution of grasslands. Existing forest biomes declined and grasslands became much more widespread. The grasslands provided a new niche for mammals, including many ungulates and glires, that switched from browsing diets to grazing diets. Traditionally, the spread of grasslands and the development of grazers have been strongly linked. However, an examination of mammalian teeth suggests that it is the open, gritty habitat and not the grass itself which is linked to diet changes in mammals, giving rise to the "grit, not grass" hypothesis.

the spread of grasslands and what have been strongly linked?
Output:
development of grazers