Problem: Mosaic:

The Abbot of Monte Cassino, Desiderius sent envoys to Constantinople some time after 1066 to hire expert Byzantine mosaicists for the decoration of the rebuilt abbey church. According to chronicler Leo of Ostia the Greek artists decorated the apse, the arch and the vestibule of the basilica. Their work was admired by contemporaries but was totally destroyed in later centuries except two fragments depicting greyhounds (now in the Monte Cassino Museum). "The abbot in his wisdom decided that great number of young monks in the monastery should be thoroughly initiated in these arts" says the chronicler about the role of the Greeks in the revival of mosaic art in medieval Italy.

After what time did the Abbot of Monte Cassino send for Byzantine mosaicists?
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A: 1066

Problem: Although some indigenous peoples of the Americas were traditionally hunter-gatherersand many, especially in Amazonia, still aremany groups practiced aquaculture and agriculture. The impact of their agricultural endowment to the world is a testament to their time and work in reshaping and cultivating the flora indigenous to the Americas. Although some societies depended heavily on agriculture, others practiced a mix of farming, hunting, and gathering. In some regions the indigenous peoples created monumental architecture, large-scale organized cities, chiefdoms, states, and empires.
What were many of the indigenous people of the Americas traditionally?
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Answer: hunter-gatherers

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As one of the earliest centers of book-printing in Europe (see above: History), Strasbourg for a long time held a large number of incunabuladocuments printed before 1500in her library as one of her most precious heritages. After the total destruction of this institution in 1870, however, a new collection had to be reassembled from scratch. Today, Strasbourg's different public and institutional libraries again display a sizable total number of incunabula, distributed as follows: Bibliotheque nationale et universitaire, ca. 2 098 Mediatheque de la ville et de la communaute urbaine de Strasbourg, 394 Bibliotheque du Grand Seminaire, 238 Mediatheque protestante, 94 and Bibliotheque alsatique du Credit Mutuel, 5.
What are incunabula's?
A: documents printed before 1500

Context and question: The Chalukya Empire (Kannada: [taukj]) was an Indian royal dynasty that ruled large parts of southern and central India between the 6th and the 12th centuries. During this period, they ruled as three related yet individual dynasties. The earliest dynasty, known as the "Badami Chalukyas", ruled from Vatapi (modern Badami) from the middle of the 6th century. The Badami Chalukyas began to assert their independence at the decline of the Kadamba kingdom of Banavasi and rapidly rose to prominence during the reign of Pulakeshin II. The rule of the Chalukyas marks an important milestone in the history of South India and a golden age in the history of Karnataka. The political atmosphere in South India shifted from smaller kingdoms to large empires with the ascendancy of Badami Chalukyas. A Southern India-based kingdom took control and consolidated the entire region between the Kaveri and the Narmada rivers. The rise of this empire saw the birth of efficient administration, overseas trade and commerce and the development of new style of architecture called "Chalukyan architecture". The Chalukya dynasty ruled parts of southern and central India from Badami in Karnataka between 550 and 750, and then again from Kalyani between 970 and 1190.
When was the second reign of Chalukyans?
Answer: 970 and 1190

Question: Near New Haven there is the static inverter plant of the HVDC Cross Sound Cable. There are three PureCell Model 400 fuel cells placed in the city of New Havenone at the New Haven Public Schools and newly constructed Roberto Clemente School, one at the mixed-use 360 State Street building, and one at City Hall. According to Giovanni Zinn of the city's Office of Sustainability, each fuel cell may save the city up to $1 million in energy costs over a decade. The fuel cells were provided by ClearEdge Power, formerly UTC Power.
Is there an answer to this question: How many PureCell Model 400 fuel cells can be found in New Haven?

Answer: three

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On 16 March 2011, the freighter MS Oliva ran aground on Nightingale Island, spilling tons of heavy fuel oil into the ocean, leaving an oil slick threatening the island's population of rockhopper penguins. Nightingale Island has no fresh water, so the penguins were transported to Tristan da Cunha for cleaning.
What was spilled into rockhopper penguins on March 16, 2011?
A:
unanswerable