The problem: Answer a question about this article:
In September 1216 John began a fresh, vigorous attack. He marched from the Cotswolds, feigned an offensive to relieve the besieged Windsor Castle, and attacked eastwards around London to Cambridge to separate the rebel-held areas of Lincolnshire and East Anglia. From there he travelled north to relieve the rebel siege at Lincoln and back east to King's Lynn, probably to order further supplies from the continent.[nb 17] In King's Lynn, John contracted dysentery, which would ultimately prove fatal. Meanwhile, Alexander II invaded northern England again, taking Carlisle in August and then marching south to give homage to Prince Louis for his English possessions; John narrowly missed intercepting Alexander along the way. Tensions between Louis and the English barons began to increase, prompting a wave of desertions, including William Marshal's son William and William Longespee, who both returned to John's faction.
When did John begin a fresh, vigorous attack?
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The answer: September 1216

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The abacus was initially used for arithmetic tasks. The Roman abacus was used in Babylonia as early as 2400 BC. Since then, many other forms of reckoning boards or tables have been invented. In a medieval European counting house, a checkered cloth would be placed on a table, and markers moved around on it according to certain rules, as an aid to calculating sums of money.
What was the abacus first used for?
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The answer: arithmetic tasks

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Carnival was introduced by Portuguese settlers. The celebration is celebrated on each of the archipelago's nine inhabited islands. In Mindelo, Sao Vicente groups challenge each other for a yearly prize. It has imported various Brazilian carnival traditions. The celebration in SaoNicolau is more traditional, where established groups parade through the Ribeira Brava, gathering in the town square, although it has adopted drums, floats and costumes from Brazil. In Sao Nicolau three groups, Copa Cabana, Estrela Azul and Brilho Da Zona constructs a painted float using fire, newspaper for the mold, iron and steel to for structure. Carnival Sao Nicolau is celebrated over three days: dawn Saturday, Sunday afternoon, and Tuesday.
What nationality were the settlers from who introduced Carnival?
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The answer: Portuguese

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The coastal plain transitions to the Piedmont region along the Atlantic Seaboard fall line, a line which marks the elevation at which waterfalls first appear on streams and rivers. The Piedmont region of central North Carolina is the state's most urbanized and densely populated section. It consists of gently rolling countryside frequently broken by hills or low mountain ridges. Small, isolated, and deeply eroded mountain ranges and peaks are located in the Piedmont, including the Sauratown Mountains, Pilot Mountain, the Uwharrie Mountains, Crowder's Mountain, King's Pinnacle, the Brushy Mountains, and the South Mountains. The Piedmont ranges from about 300 to 400 feet (91 to 122 m) in elevation in the east to over 1,000 feet (300 m) in the west. Because of the rapid population growth in the Piedmont, a significant part of the rural area in this region is being transformed into suburbs with shopping centers, housing, and corporate offices. Agriculture is steadily declining in importance. The major rivers of the Piedmont, such as the Yadkin and Catawba, tend to be fast-flowing, shallow, and narrow.
At what point does the coastal plin transition to the Piedmont region?
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The answer:
along the Atlantic Seaboard fall line