This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Ex Input:
Passage: Under the 1963 constitution, Massamba-Débat was elected President for a five-year term. During Massamba-Débat's term in office the regime adopted "scientific socialism" as the country's constitutional ideology. In 1965, Congo established relations with the Soviet Union, the People's Republic of China, North Korea and North Vietnam. Massamba-Débat's regime also invited several hundred Cuban army troops into the country to train his party's militia units and these troops helped his government survive a coup in 1966 led by paratroopers loyal to future President Marien Ngouabi. Nevertheless, Massamba-Débat was unable to reconcile various institutional, tribal and ideological factions within the country and his regime ended abruptly with a bloodless coup d'état in September 1968. Question: What was a term that could describe the political philosophy of the Congo under Massamba-Debat?

Ex Output:
scientific socialism


Ex Input:
Passage: Mach argued that, in effect, the water experiment in an otherwise empty universe would remain flat. But if another object were introduced into this universe, perhaps a distant star, there would now be something relative to which the bucket could be seen as rotating. The water inside the bucket could possibly have a slight curve. To account for the curve that we observe, an increase in the number of objects in the universe also increases the curvature in the water. Mach argued that the momentum of an object, whether angular or linear, exists as a result of the sum of the effects of other objects in the universe (Mach's Principle). Question: Mach argued that the momentum of an object exists as a result of the sum of the effects of what?

Ex Output:
effects of other objects in the universe


Ex Input:
Passage: As the capital of Uruguay, Montevideo is home to a number of festivals and carnivals including a Gaucho festival when people ride through the streets on horseback in traditional gaucho gear. The major annual festival is the annual Montevideo Carnaval which is part of the national festival of Carnival Week, celebrated throughout Uruguay, with central activities in the capital, Montevideo. Officially, the public holiday lasts for two days on Carnival Monday and Shrove Tuesday preceding Ash Wednesday, but due to the prominence of the festival, most shops and businesses close for the entire week. During carnival there are many open-air stage performances and competitions and the streets and houses are vibrantly decorated. "Tablados" or popular scenes, both fixed and movable, are erected in the whole city. Notable displays include "Desfile de las Llamadas" ("Parade of the Calls"), which is a grand united parade held on the south part of downtown, where it used to be a common ritual back in the early 20th century. Due to the scale of the festival, preparation begins as early as December with an election of the "zonal beauty queens" to appear in the carnival. Question: What is the major annual festival in Montevideo?

Ex Output:

the annual Montevideo Carnaval