Input: Article: With this contribution of von Neumann, the axiomatic system of the theory of sets became fully satisfactory, and the next question was whether or not it was also definitive, and not subject to improvement. A strongly negative answer arrived in September 1930 at the historic mathematical Congress of Königsberg, in which Kurt Gödel announced his first theorem of incompleteness: the usual axiomatic systems are incomplete, in the sense that they cannot prove every truth which is expressible in their language. This result was sufficiently innovative as to confound the majority of mathematicians of the time.

Now answer this question: What was the central theme of Godel's announcement that the axiomatic system was not complete?

Output: they cannot prove every truth which is expressible in their language

Input: Article: By 1957, pan-Arabism was the dominant ideology of the Arab world, and the average Arab citizen considered Nasser his undisputed leader. Historian Adeed Dawisha credited Nasser's status to his "charisma, bolstered by his perceived victory in the Suez Crisis". The Cairo-based Voice of the Arabs radio station spread Nasser's ideas of united Arab action throughout the Arabic-speaking world and historian Eugene Rogan wrote, "Nasser conquered the Arab world by radio." Lebanese sympathizers of Nasser and the Egyptian embassy in Beirut—the press center of the Arab world—bought out Lebanese media outlets to further disseminate Nasser's ideals. Nasser also enjoyed the support of Arab nationalist organizations, both civilian and paramilitary, throughout the region. His followers were numerous and well-funded, but lacked any permanent structure and organization. They called themselves "Nasserites", despite Nasser's objection to the label (he preferred the term "Arab nationalists").

Now answer this question: What were Arab admirers of Nasser called?

Output: Nasserites

Input: Article: Catalan (/ˈkætəlæn/; autonym: català [kətəˈla] or [kataˈla]) is a Romance language named for its origins in Catalonia, in what is northeastern Spain and adjoining parts of France. It is the national and only official language of Andorra, and a co-official language of the Spanish autonomous communities of Catalonia, the Balearic Islands, and Valencia (where the language is known as Valencian, and there exist regional standards). It also has semi-official status in the city of Alghero on the Italian island of Sardinia. It is also spoken with no official recognition in parts of the Spanish autonomous communities of Aragon (La Franja) and Murcia (Carche), and in the historic French region of Roussillon/Northern Catalonia, roughly equivalent to the department of Pyrénées-Orientales.

Now answer this question: Where is Catalan the only official language?

Output:
Andorra