Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Tennessee is home to several Protestant denominations, such as the National Baptist Convention (headquartered in Nashville); the Church of God in Christ and the Cumberland Presbyterian Church (both headquartered in Memphis); the Church of God and The Church of God of Prophecy (both headquartered in Cleveland). The Free Will Baptist denomination is headquartered in Antioch; its main Bible college is in Nashville. The Southern Baptist Convention maintains its general headquarters in Nashville. Publishing houses of several denominations are located in Nashville.
Which two major Protestant denominations are based in Memphis?
A: Church of God in Christ and the Cumberland Presbyterian Church

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An investigation by ProPublica found that at least 21 doctors have been paid more than $500,000 for speeches and consulting by drugs manufacturers since 2009, with half of the top earners working in psychiatry, and about $2 billion in total paid to doctors for such services. AstraZeneca, Johnson & Johnson and Eli Lilly have paid billions of dollars in federal settlements over allegations that they paid doctors to promote drugs for unapproved uses. Some prominent medical schools have since tightened rules on faculty acceptance of such payments by drug companies.
What was the reason these doctors have to pay fines?
A: unanswerable

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London's most popular sport is football and it has fourteen League football clubs, including five in the Premier League: Arsenal, Chelsea, Crystal Palace, Tottenham Hotspur, and West Ham United. Among other professional teams based in London include Fulham, Queens Park Rangers, Millwall and Charlton Athletic. In May 2012, Chelsea became the first London club to win the UEFA Champions League. Aside from Arsenal, Chelsea and Tottenham, none of the other London clubs have ever won the national league title.
Besides the Arsenal, Chelsea, and Tottenham football clubs, how many London-based football club have won a national league titie?
A: none

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Russian is a Slavic language of the Indo-European family. It is a lineal descendant of the language used in Kievan Rus'. From the point of view of the spoken language, its closest relatives are Ukrainian, Belarusian, and Rusyn, the other three languages in the East Slavic group. In many places in eastern and southern Ukraine and throughout Belarus, these languages are spoken interchangeably, and in certain areas traditional bilingualism resulted in language mixtures, e.g. Surzhyk in eastern Ukraine and Trasianka in Belarus. An East Slavic Old Novgorod dialect, although vanished during the 15th or 16th century, is sometimes considered to have played a significant role in the formation of modern Russian. Also Russian has notable lexical similarities with Bulgarian due to a common Church Slavonic influence on both languages, as well as because of later interaction in the 19th20th centuries, although Bulgarian grammar differs markedly from Russian. In the 19th century, the language was often called "Great Russian" to distinguish it from Belarusian, then called "White Russian" and Ukrainian, then called "Little Russian".
In what centuries is it thought that the Surzhyk language disappeared?
A:
unanswerable