Problem: Given the question: I know that the answer to the question "What specific aspect of the corridors allowed travel?" is in "Indigenous genetic studies suggest that the first inhabitants of the Americas share a single ancestral population, one that developed in isolation, conjectured to be Beringia. The isolation of these peoples in Beringia might have lasted 1020,000 years. Around 16,500 years ago, the glaciers began melting, allowing people to move south and east into Canada and beyond. These people are believed to have followed herds of now-extinct Pleistocene megafauna along ice-free corridors that stretched between the Laurentide and Cordilleran Ice Sheets.". Can you tell me what it is?
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The answer is:
ice-free

input question: I know that the answer to the question "When did Nasser step down as president?" is in "Nasser's nationalization of the Suez Canal and his emergence as the political victor from the subsequent Suez Crisis substantially elevated his popularity in Egypt and the Arab world. Calls for pan-Arab unity under his leadership increased, culminating with the formation of the United Arab Republic with Syria (19581961). In 1962, Nasser began a series of major socialist measures and modernization reforms in Egypt. Despite setbacks to his pan-Arabist cause, by 1963 Nasser's supporters gained power in several Arab countries and he became embroiled in the North Yemen Civil War. He began his second presidential term in March 1965 after his political opponents were banned from running. Following Egypt's defeat by Israel in the 1967 Six-Day War, Nasser resigned, but he returned to office after popular demonstrations called for his reinstatement. By 1968, Nasser had appointed himself prime minister, launched the War of Attrition to regain lost territory, began a process of depoliticizing the military, and issued a set of political liberalization reforms. After the conclusion of the 1970 Arab League summit, Nasser suffered a heart attack and died. His funeral in Cairo drew five million mourners and an outpouring of grief across the Arab world.". Can you tell me what it is????
output answer: 1967

I know that the answer to the question "The Persians ruled Egypt in fifth century what?" is in "In 525 BC, the powerful Achaemenid Persians, led by Cambyses II, began their conquest of Egypt, eventually capturing the pharaoh Psamtik III at the battle of Pelusium. Cambyses II then assumed the formal title of pharaoh, but ruled Egypt from his home of Susa in Persia (modern Iran), leaving Egypt under the control of a satrapy. The entire Twenty-seventh Dynasty of Egypt, from 525 BC to 402 BC, save for Petubastis III, was an entirely Persian ruled period, with the Achaemenid kings all being granted the title of pharaoh. A few temporarily successful revolts against the Persians marked the fifth century BC, but Egypt was never able to permanently overthrow the Persians.". Can you tell me what it is?
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Answer: BC

Q: I know that the answer to the question "How were radio signals transmitted on Ascension Island not including internet?" is in "Saint FM provided a local radio service for the island which was also available on internet radio and relayed in Ascension Island. The station was not government funded. It was launched in January 2005 and closed on 21 December 2012. It broadcast news, features and music in collaboration with its sister newspaper, the St Helena Independent (which continues).". Can you tell me what it is?
A: FM

Question: I know that the answer to the question "Rather than agreeing on their respective practices, Buddhist schools do what?" is in "Buddhist schools vary on the exact nature of the path to liberation, the importance and canonicity of various teachings and scriptures, and especially their respective practices. Buddhism denies a creator deity and posits that mundane deities such as Mahabrahma are misperceived to be a creator. The foundations of Buddhist tradition and practice are the Three Jewels: the Buddha, the Dharma (the teachings), and the Sangha (the community). Taking "refuge in the triple gem" has traditionally been a declaration and commitment to being on the Buddhist path, and in general distinguishes a Buddhist from a non-Buddhist. Other practices are Ten Meritorious Deeds including, giving charity to reduce the greediness; following ethical precepts; renouncing conventional living and becoming a monastic; the development of mindfulness and practice of meditation; cultivation of higher wisdom and discernment; study of scriptures; devotional practices; ceremonies; and in the Mahayana tradition, invocation of buddhas and bodhisattvas.". Can you tell me what it is?
Answer: vary on the exact nature

Please answer this: I know that the answer to the question "What type of transportation system sometimes uses AC power?" is in "There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.". Can you tell me what it is?
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Answer:
railroad