Problem: The Staten Island Railway rapid transit system solely serves Staten Island, operating 24 hours a day. The Port Authority Trans-Hudson (PATH train) links Midtown and Lower Manhattan to northeastern New Jersey, primarily Hoboken, Jersey City, and Newark. Like the New York City Subway, the PATH operates 24 hours a day; meaning three of the six rapid transit systems in the world which operate on 24-hour schedules are wholly or partly in New York (the others are a portion of the Chicago 'L', the PATCO Speedline serving Philadelphia, and the Copenhagen Metro).
What 24-hour rapid transit system is outside the United States?
The answer is the following: Copenhagen Metro


In addition to Virginia and Confederate government offices and hospitals, a railroad hub, and one of the South's largest slave markets, Richmond had the largest factory in the Confederacy, the Tredegar Iron Works, which turned out artillery and other munitions, including the 723 tons of armor plating that covered the CSS Virginia, the world's first ironclad used in war, as well as much of the Confederates' heavy ordnance machinery. The Confederate Congress shared quarters with the Virginia General Assembly in the Virginia State Capitol, with the Confederacy's executive mansion, the "White House of the Confederacy", located two blocks away. The Seven Days Battles followed in late June and early July 1862, during which Union General McClellan threatened to take Richmond but ultimately failed.
Who commanded the Union armies during the Seven Days Battles?
McClellan


Input: Bacteria
Even more complex morphological changes are sometimes possible. For example, when starved of amino acids, Myxobacteria detect surrounding cells in a process known as quorum sensing, migrate toward each other, and aggregate to form fruiting bodies up to 500 micrometres long and containing approximately 100,000 bacterial cells. In these fruiting bodies, the bacteria perform separate tasks; this type of cooperation is a simple type of multicellular organisation. For example, about one in 10 cells migrate to the top of these fruiting bodies and differentiate into a specialised dormant state called myxospores, which are more resistant to drying and other adverse environmental conditions than are ordinary cells.

What is the vital nutriment for Myxobacteria?
Output: amino acids


Input: Article: The Argentine, British and Chilean claims all overlap, and have caused friction. On 18 December 2012, the British Foreign and Commonwealth Office named a previously unnamed area Queen Elizabeth Land in tribute to Queen Elizabeth II's Diamond Jubilee. On 22 December 2012, the UK ambassador to Argentina, John Freeman, was summoned to the Argentine government as protest against the claim. Argentine–UK relations had previously been damaged throughout 2012 due to disputes over the sovereignty of the nearby Falkland Islands, and the 30th anniversary of the Falklands War.

Now answer this question: What was the response of the Argentine response to the British land claim?

Output: protest


Article: The first known smelting of iron began in Anatolia, around 1800 BC. Called the bloomery process, it produced very soft but ductile wrought iron. By 800 BC, iron-making technology had spread to Europe, arriving in Japan around 700 AD. Pig iron, a very hard but brittle alloy of iron and carbon, was being produced in China as early as 1200 BC, but did not arrive in Europe until the Middle Ages. Pig iron has a lower melting point than iron, and was used for making cast-iron. However, these metals found little practical use until the introduction of crucible steel around 300 BC. These steels were of poor quality, and the introduction of pattern welding, around the 1st century AD, sought to balance the extreme properties of the alloys by laminating them, to create a tougher metal. Around 700 AD, the Japanese began folding bloomery-steel and cast-iron in alternating layers to increase the strength of their swords, using clay fluxes to remove slag and impurities. This method of Japanese swordsmithing produced one of the purest steel-alloys of the early Middle Ages.

Question: Where did smelting of iron begin?
Ans: Anatolia


Input: Crimean War
Nicholas began courting Britain by means of conversations with the British ambassador, George Hamilton Seymour, in January and February 1853.:105 Nicholas insisted that he no longer wished to expand Imperial Russia:105 but that he had an obligation to the Christian communities in the Ottoman Empire.:105  The Tsar next dispatched a highly abrasive diplomat, Prince Menshikov, on a special mission to the Ottoman Sublime Porte in February 1853. By previous treaties, the sultan was committed "to protect the (Eastern Orthodox) Christian religion and its churches." Menshikov demanded a Russian protectorate over all 12 million Orthodox Christians in the Empire, with control of the Orthodox Church's hierarchy. A compromise was reached regarding Orthodox access to the Holy Land, but the Sultan, strongly supported by the British ambassador, rejected the more sweeping demands.

In what year was Prince Menshikov sent to the Ottoman Sublime Porte?
Output:
1853