[Q]: Question: "What being solved the problem?" Context: "The solution was automation, in the form of a mechanical computer, the Kerrison Predictor. Operators kept it pointed at the target, and the Predictor then calculated the proper aim point automatically and displayed it as a pointer mounted on the gun. The gun operators simply followed the pointer and loaded the shells. The Kerrison was fairly simple, but it pointed the way to future generations that incorporated radar, first for ranging and later for tracking. Similar predictor systems were introduced by Germany during the war, also adding radar ranging as the war progressed." Answer:
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[A]: the Kerrison Predictor

[Q]: Question: "What covers 126 km in Raleigh?" Context: "The Raleigh Parks and Recreation Department offers a wide variety of leisure opportunities at more than 150 sites throughout the city, which include: 8,100 acres (33 km2) of park land, 78 miles (126 km) of greenway, 22 community centers, a BMX championship-caliber race track, 112 tennis courts among 25 locations, 5 public lakes, and 8 public aquatic facilities. The J. C. Raulston Arboretum, an 8-acre (32,000 m) arboretum and botanical garden in west Raleigh administered by North Carolina State University, maintains a year-round collection that is open daily to the public without charge." Answer:
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[A]: greenway

[Q]: Question: "Who wroted classic protuguese literature in the 16th century?" Context: "Adventurer and poet Luis de Camoes (c. 15241580) wrote the epic poem "Os Lusiadas" (The Lusiads), with Virgil's Aeneid as his main influence. Modern Portuguese poetry is rooted in neoclassic and contemporary styles, as exemplified by Fernando Pessoa (18881935). Modern Portuguese literature is represented by authors such as Almeida Garrett, Camilo Castelo Branco, Eca de Queiroz, Fernando Pessoa, Sophia de Mello Breyner Andresen, Antonio Lobo Antunes and Miguel Torga. Particularly popular and distinguished is Jose Saramago, recipient of the 1998 Nobel Prize in Literature." Answer:
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[A]: Adventurer and poet Luis de Camoes (c. 15241580)

[Q]: Question: "Which issues did Dell's competitor deal with but they did not?" Context: "Dell has been attempting to offset its declining PC business, which still accounted for half of its revenue and generates steady cash flow, by expanding into the enterprise market with servers, networking, software, and services. It avoided many of the acquisition writedowns and management turnover that plagued its chief rival Hewlett Packard. Dell also managed some success in taking advantage of its high-touch direct sales heritage to establish close relationships and design solutions for clients. Despite spending $13 billion on acquisitions to diversify its portfolio beyond hardware, the company was unable to convince the market that it could thrive or made the transformation in the post-PC world, as it suffered continued declines in revenue and share price. Dell's market share in the corporate segment was previously a "moat" against rivals but this has no longer been the case as sales and profits have fallen precipitously." Answer:
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[A]:
acquisition writedowns and management turnover