Problem: Phonology:

An influential school of phonology in the interwar period was the Prague school. One of its leading members was Prince Nikolai Trubetzkoy, whose Grundzuge 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.

What was Baudouin de Courtenay's publication?
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A: unanswerable

Problem: The capital, Brazzaville, is located on the Congo River, in the south of the country, immediately across from Kinshasa, the capital of the Democratic Republic of the Congo.
What is located in the north of the Congo?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Retrotransposons can be transcribed into RNA, which are then duplicated at another site into the genome. Retrotransposons can be divided into Long terminal repeats (LTRs) and Non-Long Terminal Repeats (Non-LTR).
What happens when long terminal repeats are transcribed into RNA?
A: unanswerable

Context and question: The 20th century saw the arrival of Modernism, and along with it came the most prominent Portuguese painters: Amadeo de Souza-Cardoso, who was heavily influenced by French painters, particularly by the Delaunays. Among his best-known works is Cancao Popular a Russa e o Figaro. Another great modernist painters/writers were Carlos Botelho and Almada Negreiros, friend to the poet Fernando Pessoa, who painted his (Pessoa's) portrait. He was deeply influenced by both Cubist and Futurist trends. Prominent international figures in visual arts nowadays include painters Vieira da Silva, Julio Pomar, Helena Almeida, Joana Vasconcelos, Juliao Sarmento and Paula Rego.
What is one of Amadeo de Souza-Cardoso's best known works?
Answer: Cancao Popular a Russa e o Figaro

Question: In March 2012, the newspaper El Mundo published a story according to which FGV had instructed employees who were to testify at the crash commission investigation, providing a set of possible questions and guidelines to prepare the answers. In April 2013, the television program Salvados questioned the official version of the incident as there were indications that the Valencian Government had tried to downplay the accident, which coincided with the visit of the pope to Valencia, or even to hide evidence, as the book of train breakdowns was never found. The day after the broadcast of this report, which received extensive media coverage, several voices called for the reopening of the investigation. The investigation was effectively reopened and the accident is currently under re-examination.
Is there an answer to this question: What happened at the same time as the crash, which may have contributed to the government downplaying it?

Answer: visit of the pope to Valencia

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Houston is recognized worldwide for its energy industryparticularly for oil and natural gasas well as for biomedical research and aeronautics. Renewable energy sourceswind and solarare also growing economic bases in the city. The Houston Ship Channel is also a large part of Houston's economic base. Because of these strengths, Houston is designated as a global city by the Globalization and World Cities Study Group and Network and global management consulting firm A.T. Kearney. The Houston area is the top U.S. market for exports, surpassing New York City in 2013, according to data released by the U.S. Department of Commerce's International Trade Administration. In 2012, the HoustonThe WoodlandsSugar Land area recorded $110.3 billion in merchandise exports. Petroleum products, chemicals, and oil and gas extraction equipment accounted for approximately two-thirds of the metropolitan area's exports last year. The Top 3 destinations for exports were Mexico, Canada, and Brazil.
In what did Houston pass New York City in 2003?
A:
unanswerable