Problem: Palermo:

The first settlement is defined as Paleapolis (), the Ancient Greek world for "old city", in order to distinguish it from a second settlement built during the 5th century BC, called Neapolis (), "new city". The neapolis was erected towards the east and along with it, monumental walls around the whole settlement were built to prevent attacks from foreign threats. Some part of this structure can still be seen in the Cassaro district. This district was named after the walls themselves; the word Cassaro deriving from the Arab al-qsr (castle, stronghold). Along the walls there were few doors to access and exit the city, suggesting that trade even toward the inner part of the island occurred frequently. Moreover, according to some studies, it may be possible that there were some walls that divided the old city from the new one too. The colony developed around a central street (decumanus), cut perpendicularly by minor streets. This street today has become the Corso Vittorio Emanuele.

What was built during the 500's BC.?
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A: unanswerable

Problem: The area now known as Tennessee was first inhabited by Paleo-Indians nearly 12,000 years ago. The names of the cultural groups that inhabited the area between first settlement and the time of European contact are unknown, but several distinct cultural phases have been named by archaeologists, including Archaic (80001000 BC), Woodland (1000 BC1000 AD), and Mississippian (10001600 AD), whose chiefdoms were the cultural predecessors of the Muscogee people who inhabited the Tennessee River Valley before Cherokee migration into the river's headwaters.
What time period corresponds with the Mississippian cultural phase in early Tennessee history?
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Answer: 10001600 AD

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
At Live Aid, held at Wembley on 13 July 1985, in front of the biggest-ever TV audience of 1.9 billion, Queen performed some of their greatest hits, during which the sold-out stadium audience of 72,000 people clapped, sang, and swayed in unison. The show's organisers, Bob Geldof and Midge Ure, other musicians such as Elton John, Cliff Richard and Dave Grohl, and music journalists writing for the BBC, CNN, Rolling Stone, MTV, The Telegraph among others, stated that Queen stole the show. An industry poll in 2005 ranked it the greatest rock performance of all time. Mercury's powerful, sustained note during the a cappella section came to be known as "The Note Heard Round the World".
How long was Live Aid's stadium audience?
A: 72,000

Context and question: A climbing elevator is a self-ascending elevator with its own propulsion. The propulsion can be done by an electric or a combustion engine. Climbing elevators are used in guyed masts or towers, in order to make easy access to parts of these constructions, such as flight safety lamps for maintenance. An example would be the Moonlight towers in Austin, Texas, where the elevator holds only one person and equipment for maintenance. The Glasgow Tower an observation tower in Glasgow, Scotland also makes use of two climbing elevators.
What settings are climbing elevators used in?
Answer: guyed masts or towers

Question: The Samoan word for dance is siva with unique gentle movements of the body in time to music and which tells a story, although the Samoan male dances can be more physical and snappy. The sasa is also a traditional dance where rows of dancers perform rapid synchronised movements in time to the rhythm of wooden drums (pate) or rolled mats. Another dance performed by males is called the fa'ataupati or the slap dance, creating rhythmic sounds by slapping different parts of the body. This is believed to have been derived from slapping insects on the body.
Is there an answer to this question: Why was the siva dance created?

Answer: unanswerable

Problem: Federalism:

The post-Imperial nature of Russian subdivision of government changed towards a generally autonomous model which began with the establishment of the USSR (of which Russia was governed as part). It was liberalized in the aftermath of the Soviet Union, with the reforms under Boris Yeltsin preserving much of the Soviet structure while applying increasingly liberal reforms to the governance of the constituent republics and subjects (while also coming into conflict with Chechen secessionist rebels during the Chechen War). Some of the reforms under Yeltsin were scaled back by Vladimir Putin.

What happened to Prussia's subdivision of government?
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A:
unanswerable