Problem: Greeks:

Greek colonies and communities have been historically established on the shores of the Mediterranean Sea and Black Sea, but the Greek people have always been centered around the Aegean and Ionian seas, where the Greek language has been spoken since the Bronze Age. Until the early 20th century, Greeks were distributed between the Greek peninsula, the western coast of Asia Minor, the Black Sea coast, Cappadocia in central Anatolia, Egypt, the Balkans, Cyprus, and Constantinople. Many of these regions coincided to a large extent with the borders of the Byzantine Empire of the late 11th century and the Eastern Mediterranean areas of ancient Greek colonization. The cultural centers of the Greeks have included Athens, Thessalonica, Alexandria, Smyrna, and Constantinople at various periods.

Which two seas have been least central to Greek history?
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A: unanswerable

Problem: A similar fate befell the Curonians who lived in the area around the Curonian Lagoon. While many fled from the Red Army during the evacuation of East Prussia, Curonians that remained behind were subsequently expelled by the Soviet Union. Only 219 lived along the Curonian Spit in 1955. Many had German names such as Fritz or Hans, a cause for anti-German discrimination. The Soviet authorities considered the Curonians fascists. Because of this discrimination, many immigrated to West Germany in 1958, where the majority of Curonians now live.
Where did most of the Curonians flee to in 1958?
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Answer: West Germany

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Various owners leased it from royal landlords and the freehold was the subject of frenzied speculation during the 17th century. By then, the old village of Eye Cross had long since fallen into decay, and the area was mostly wasteland. Needing money, James I sold off part of the Crown freehold but retained part of the site on which he established a 4-acre (16,000 m2) mulberry garden for the production of silk. (This is at the northwest corner of today's palace.) Clement Walker in Anarchia Anglicana (1649) refers to "new-erected sodoms and spintries at the Mulberry Garden at S. James's"; this suggests it may have been a place of debauchery. Eventually, in the late 17th century, the freehold was inherited from the property tycoon Sir Hugh Audley by the great heiress Mary Davies.
Which property tycoon inherited the property in the late 19th century?
A: unanswerable

Context and question: On August 19, 1989, the Russian Orthodox Parish of Saints Peter and Paul announced it would be switching to the Ukrainian Autocephalous Orthodox Church. On September 2, 1989, tens of thousands across Ukraine protested a draft election law that reserved special seats for the Communist Party and for other official organizations: 50,000 in Lviv, 40,000 in Kiev, 10,000 in Zhytomyr, 5,000 each in Dniprodzerzhynsk and Chervonohrad, and 2,000 in Kharkiv. From September 810, 1989, writer Ivan Drach was elected to head Rukh, the People's Movement of Ukraine, at its founding congress in Kiev. On September 17, between 150,000 and 200,000 people marched in Lviv, demanding the legalization of the Ukrainian Greek Catholic Church. On September 21, 1989, exhumation of a mass grave begins in Demianiv Laz, a nature preserve south of Ivano-Frankivsk. On September 28, First Secretary of the Communist Party of the Ukraine Volodymyr Shcherbytsky, a holdover from the Brezhnev era, was replaced by Vladimir Ivashko.
How many protesters were there in Lviv?
Answer: 50,000

Question: The Northwestern Interdisciplinary Law Review is a scholarly legal publication published annually by an editorial board of Northwestern University undergraduates. The journal's mission is to publish interdisciplinary legal research, drawing from fields such as history, literature, economics, philosophy, and art. Founded in 2008, the journal features articles by professors, law students, practitioners, and undergraduates. The journal is funded by the Buffett Center for International and Comparative Studies and the Office of the Provost.
Is there an answer to this question: What journal was founded in 2018 that features articles by professors and law students?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
HDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith and the Massachusetts Institute of Technology. Field testing of HDTV at 199 sites in the United States was completed August 14, 1994. The first public HDTV broadcast in the United States occurred on July 23, 1996 when the Raleigh, North Carolina television station WRAL-HD began broadcasting from the existing tower of WRAL-TV southeast of Raleigh, winning a race to be first with the HD Model Station in Washington, D.C., which began broadcasting July 31, 1996 with the callsign WHD-TV, based out of the facilities of NBC owned and operated station WRC-TV. The American Advanced Television Systems Committee (ATSC) HDTV system had its public launch on October 29, 1998, during the live coverage of astronaut John Glenn's return mission to space on board the Space Shuttle Discovery. The signal was transmitted coast-to-coast, and was seen by the public in science centers, and other public theaters specially equipped to receive and display the broadcast.
When was HDTV introduced in the US?
A:
late 1980s