Input: Article: An influential school of phonology in the interwar period was the Prague school. One of its leading members was Prince Nikolai Trubetzkoy, whose Grundzüge der Phonologie (Principles of Phonology), published posthumously in 1939, is among the most important works in the field from this period. Directly influenced by Baudouin de Courtenay, Trubetzkoy is considered the founder of morphophonology, although this concept had also been recognized by de Courtenay. Trubetzkoy also developed the concept of the archiphoneme. Another important figure in the Prague school was Roman Jakobson, who was one of the most prominent linguists of the 20th century.

Now answer this question: What school was Trubetzkoy a member of?

Output: the Prague school.

Input: Article: Until the second half of the 15th century the empire had a Christian majority, under the rule of a Muslim minority. In the late 19th century, the non-Muslim population of the empire began to fall considerably, not only due to secession, but also because of migratory movements. The proportion of Muslims amounted to 60% in the 1820s, gradually increasing to 69% in the 1870s and then to 76% in the 1890s. By 1914, only 19.1% of the empire's population was non-Muslim, mostly made up of Christian Greeks, Assyrians, Armenians, and Jews.

Now answer this question: In 1914 what portion of the Empire weren't Muslims?

Output: 19.1%

Input: Article: To varying degrees, Nasser's statist system of government was continued in Egypt and emulated by virtually all Arab republics, namely Algeria, Syria, Iraq, Tunisia, Yemen, Sudan, and Libya. Ahmed Ben Bella, Algeria's first president, was a staunch Nasserist. Abdullah al-Sallal drove out the king of North Yemen in the name of Nasser's pan-Arabism. Other coups influenced by Nasser included those that occurred in Iraq in July 1958 and Syria in 1963. Muammar Gaddafi, who overthrew the Libyan monarchy in 1969, considered Nasser his hero and sought to succeed him as "leader of the Arabs". Also in 1969, Colonel Gaafar Nimeiry, a supporter of Nasser, took power in Sudan. The Arab Nationalist Movement (ANM) helped spread Nasser's pan-Arabist ideas throughout the Arab world, particularly among the Palestinians, Syrians, and Lebanese, and in South Yemen, the Persian Gulf, and Iraq. While many regional heads of state tried to emulate Nasser, Podeh opined that the "parochialism" of successive Arab leaders "transformed imitation [of Nasser] into parody".

Now answer this question: What Nasserist usurped the King of Yemen?

Output:
Abdullah al-Sallal