Problem: Given the question: Extract the answer to the question from the following context. Question: Where was the attack? Context: The city and surrounding area suffered the bulk of the economic damage and largest loss of human life in the aftermath of the September 11, 2001 attacks when 10 of the 19 terrorists associated with Al-Qaeda piloted American Airlines Flight 11 into the North Tower of the World Trade Center and United Airlines Flight 175 into the South Tower of the World Trade Center, and later destroyed them, killing 2,192 civilians, 343 firefighters, and 71 law enforcement officers who were in the towers and in the surrounding area. The rebuilding of the area, has created a new One World Trade Center, and a 9/11 memorial and museum along with other new buildings and infrastructure. The World Trade Center PATH station, which opened on July 19, 1909 as the Hudson Terminal, was also destroyed in the attack. A temporary station was built and opened on November 23, 2003. A permanent station, the World Trade Center Transportation Hub, is currently under construction. The new One World Trade Center is the tallest skyscraper in the Western Hemisphere and the fourth-tallest building in the world by pinnacle height, with its spire reaching a symbolic 1,776 feet (541.3 m) in reference to the year of American independence.
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The answer is:
World Trade Center

Problem: Given the question: Extract the answer to the question from the following context. Question: Blending makes something? Context: Islanders speak both English and a creole language known as Norfuk, a blend of 18th-century English and Tahitian. The Norfuk language is decreasing in popularity as more tourists travel to the island and more young people leave for work and study reasons; however, there are efforts to keep it alive via dictionaries and the renaming of some tourist attractions to their Norfuk equivalents. In 2004 an act of the Norfolk Island Assembly made it a co-official language of the island. The act is long-titled: "An Act to recognise the Norfolk Island Language (Norf'k) as an official language of Norfolk Island." The "language known as 'Norf'k'" is described as the language "that is spoken by descendants of the first free settlers of Norfolk Island who were descendants of the settlers of Pitcairn Island". The act recognises and protects use of the language but does not require it; in official use, it must be accompanied by an accurate translation into English. 32% of the total population reported speaking a language other than English in the 2011 census, and just under three-quarters of the ordinarily resident population could speak Norfuk.
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The answer is:
creole

Problem: Given the question: Extract the answer to the question from the following context. Question: What type of particle is NOT made of matter? Context: In quantum mechanics and quantum field theory, the vacuum is defined as the state (that is, the solution to the equations of the theory) with the lowest possible energy (the ground state of the Hilbert space). In quantum electrodynamics this vacuum is referred to as 'QED vacuum' to distinguish it from the vacuum of quantum chromodynamics, denoted as QCD vacuum. QED vacuum is a state with no matter particles (hence the name), and also no photons. As described above, this state is impossible to achieve experimentally. (Even if every matter particle could somehow be removed from a volume, it would be impossible to eliminate all the blackbody photons.) Nonetheless, it provides a good model for realizable vacuum, and agrees with a number of experimental observations as described next.
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The answer is:
blackbody photons