Problem: Republic of the Congo:

The Republic of the Congo (French: Republique du Congo), also known as Congo, Congo Republic, West Congo[citation needed], or Congo-Brazzaville, is a country located in Central Africa. It is bordered by five countries: Gabon to the west; Cameroon to the northwest; the Central African Republic to the northeast; the Democratic Republic of the Congo to the east and south; and the Angolan exclave of Cabinda to the southwest.

What is the Angolan name for The Republic of the Congo?
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A: unanswerable

Problem: Beyonce's second solo album B'Day was released on September 5, 2006, in the US, to coincide with her twenty-fifth birthday. It sold 541,000 copies in its first week and debuted atop the Billboard 200, becoming Beyonce's second consecutive number-one album in the United States. The album's lead single "Deja Vu", featuring Jay Z, reached the top five on the Billboard Hot 100 chart. The second international single "Irreplaceable" was a commercial success worldwide, reaching number one in Australia, Hungary, Ireland, New Zealand and the United States. B'Day also produced three other singles; "Ring the Alarm", "Get Me Bodied", and "Green Light" (released in the United Kingdom only).
Who collaborated with Beyonce on the single, Deja Vu?
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Answer: Jay Z

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Historians trace the earliest Baptist church back to 1609 in Amsterdam, with John Smyth as its pastor. Three years earlier, while a Fellow of Christ's College, Cambridge, he had broken his ties with the Church of England. Reared in the Church of England, he became "Puritan, English Separatist, and then a Baptist Separatist," and ended his days working with the Mennonites. He began meeting in England with 6070 English Separatists, in the face of "great danger." The persecution of religious nonconformists in England led Smyth to go into exile in Amsterdam with fellow Separatists from the congregation he had gathered in Lincolnshire, separate from the established church (Anglican). Smyth and his lay supporter, Thomas Helwys, together with those they led, broke with the other English exiles because Smyth and Helwys were convinced they should be baptized as believers. In 1609 Smyth first baptized himself and then baptized the others.
John Smyth broke his ties with what church?
A: Church of England

Context and question: At her Silver Jubilee in 1977, the crowds and celebrations were genuinely enthusiastic, but in the 1980s, public criticism of the royal family increased, as the personal and working lives of Elizabeth's children came under media scrutiny. Elizabeth's popularity sank to a low point in the 1990s. Under pressure from public opinion, she began to pay income tax for the first time, and Buckingham Palace was opened to the public. Discontent with the monarchy reached its peak on the death of Diana, Princess of Wales, though Elizabeth's personal popularity and support for the monarchy rebounded after her live television broadcast to the world five days after Diana's death.
What increased in the 1980s?
Answer: public criticism

Question: The direct object of the verb appears either in the accusative (for total objects) or in the partitive (for partial objects). The accusative coincides with the genitive in the singular and with nominative in the plural. Accusative vs. partitive case opposition of the object used with transitive verbs creates a telicity contrast, just as in Finnish. This is a rough equivalent of the perfective vs. imperfective aspect opposition.
Is there an answer to this question: What language does not have a telicity contrast?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In species which show a distinct difference between heartwood and sapwood the natural color of heartwood is usually darker than that of the sapwood, and very frequently the contrast is conspicuous (see section of yew log above). This is produced by deposits in the heartwood of chemical substances, so that a dramatic color difference does not mean a dramatic difference in the mechanical properties of heartwood and sapwood, although there may be a dramatic chemical difference.
Is the color difference between heartwood and sapwood usually very subtle or conspicuous?
A:
conspicuous