Question: What are the biggest terrorist attacks by the group with which Bush said the war on terror begins against the country where where the 1876 Centennial Exposition took place?

full_context: Document 1: Alexander Graham Bell: Bell began a series of public demonstrations and lectures to introduce the new invention to the scientific community as well as the general public. A short time later, his demonstration of an early telephone prototype at the 1876 Centennial Exposition in Philadelphia brought the telephone to international attention. Influential visitors to the exhibition included Emperor Pedro II of Brazil. Later Bell had the opportunity to demonstrate the invention personally to Sir William Thomson (later, Lord Kelvin), a renowned Scottish scientist, as well as to Queen Victoria, who had requested a private audience at Osborne House, her Isle of Wight home. She called the demonstration "most extraordinary". The enthusiasm surrounding Bell's public displays laid the groundwork for universal acceptance of the revolutionary device.
Document 2: Military history of the United States: The War on Terrorism is a global effort by the governments of several countries (primarily the United States and its principal allies) to neutralize international terrorist groups (primarily Islamic Extremist terrorist groups, including al-Qaeda) and ensure that countries considered by the US and some of its allies to be Rogue Nations no longer support terrorist activities. It has been adopted primarily as a response to the September 11, 2001 attacks on the United States. Since 2001, terrorist motivated attacks upon service members have occurred in Arkansas and Texas.
Document 3: War on Terror: On 16 September 2001, at Camp David, President George W. Bush used the phrase war on terrorism in an unscripted and controversial comment when he said, "This crusade – this war on terrorism – is going to take a while, ... " Bush later apologized for this remark due to the negative connotations the term crusade has to people, e.g. of Muslim faith. The word crusade was not used again. On 20 September 2001, during a televised address to a joint session of congress, Bush stated that, "(o)ur 'war on terror' begins with al-Qaeda, but it does not end there. It will not end until every terrorist group of global reach has been found, stopped, and defeated."
Document 4: Alexander Graham Bell: Although Alexander Graham Bell is most often associated with the invention of the telephone, his interests were extremely varied. According to one of his biographers, Charlotte Gray, Bell's work ranged "unfettered across the scientific landscape" and he often went to bed voraciously reading the Encyclopædia Britannica, scouring it for new areas of interest. The range of Bell's inventive genius is represented only in part by the 18 patents granted in his name alone and the 12 he shared with his collaborators. These included 14 for the telephone and telegraph, four for the photophone, one for the phonograph, five for aerial vehicles, four for "hydroairplanes" and two for selenium cells. Bell's inventions spanned a wide range of interests and included a metal jacket to assist in breathing, the audiometer to detect minor hearing problems, a device to locate icebergs, investigations on how to separate salt from seawater, and work on finding alternative fuels.
Document 5: United States–Yemen relations: In the years after the September 11, 2001 attack on the World Trade Center in New York City, Yemen became a key site for U.S. intelligence gathering and drone attacks on Al-Qaeda. According to the 2012 U.S. Global Leadership Report, 18% of Yemenis approved of U.S. leadership, with 59% disapproving and 23% uncertain. According to a February 2015 report from the Congressional Research Service, U.S. officials considered Al-Qaeda in the Arab Peninsula the Al-Qaeda affiliate "most likely to attempt transnational attacks against the United States."
Document 6: Federal Medical Center, Butner: The Federal Medical Center, Butner (FMC Butner) is a United States federal prison in North Carolina for male inmates of all security levels who have special health needs. It is part of the Butner Federal Correctional Complex and is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. An adjacent satellite prison camp houses minimum-security male inmates.
Document 7: 2004 United States presidential election: Just eight months into his presidency, the terrorist attacks of September 11, 2001 suddenly transformed Bush into a wartime president. Bush's approval ratings surged to near 90%. Within a month, the forces of a coalition led by the United States entered Afghanistan, which had been sheltering Osama bin Laden, suspected mastermind of the September 11 attacks. By December, the Taliban had been removed as rulers of Kabul, although a long and ongoing reconstruction would follow, severely hampered by ongoing turmoil and violence within the country.
Document 8: Federal Detention Center, Philadelphia: The Federal Detention Center (FDC Philadelphia) is a United States Federal prison in Center City, Philadelphia, Pennsylvania which holds male and female inmates prior to or during court proceedings, as well as inmates serving brief sentences. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice.
Document 9: War on Terror: Because the actions involved in the "war on terrorism" are diffuse, and the criteria for inclusion are unclear, political theorist Richard Jackson has argued that "the 'war on terrorism' therefore, is simultaneously a set of actual practices—wars, covert operations, agencies, and institutions—and an accompanying series of assumptions, beliefs, justifications, and narratives—it is an entire language or discourse." Jackson cites among many examples a statement by John Ashcroft that "the attacks of September 11 drew a bright line of demarcation between the civil and the savage". Administration officials also described "terrorists" as hateful, treacherous, barbarous, mad, twisted, perverted, without faith, parasitical, inhuman, and, most commonly, evil. Americans, in contrast, were described as brave, loving, generous, strong, resourceful, heroic, and respectful of human rights.
Document 10: Federal Correctional Institution, Seagoville: The Federal Correctional Institution, Seagoville (FCI Seagoville) is a low-security United States federal prison for male inmates in Seagoville, Texas in the Dallas-Fort Worth metropolitan area. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. The facility includes a detention center for male offenders and an adjacent satellite prison camp that houses minimum security-male offenders.
Document 11: September 11 attacks: Journalist Yosri Fouda of the Arabic television channel Al Jazeera reported that in April 2002 Khalid Sheikh Mohammed admitted his involvement in the attacks, along with Ramzi bin al-Shibh. The 9/11 Commission Report determined that the animosity towards the United States felt by Mohammed, the principal architect of the 9/11 attacks, stemmed from his "violent disagreement with U.S. foreign policy favoring Israel". Mohammed was also an adviser and financier of the 1993 World Trade Center bombing and the uncle of Ramzi Yousef, the lead bomber in that attack.Mohammed was arrested on March 1, 2003, in Rawalpindi, Pakistan, by Pakistani security officials working with the CIA. He was then held at multiple CIA secret prisons and Guantanamo Bay where he was interrogated and tortured with methods including waterboarding. During U.S. hearings at Guantanamo Bay in March 2007, Mohammed again confessed his responsibility for the attacks, stating he "was responsible for the 9/11 operation from A to Z" and that his statement was not made under duress.
Document 12: War on Terror: In 2002, the Musharraf-led government took a firm stand against the jihadi organizations and groups promoting extremism, and arrested Maulana Masood Azhar, head of the Jaish-e-Mohammed, and Hafiz Muhammad Saeed, chief of the Lashkar-e-Taiba, and took dozens of activists into custody. An official ban was imposed on the groups on 12 January. Later that year, the Saudi born Zayn al-Abidn Muhammed Hasayn Abu Zubaydah was arrested by Pakistani officials during a series of joint U.S.-Pakistan raids. Zubaydah is said to have been a high-ranking al-Qaeda official with the title of operations chief and in charge of running al-Qaeda training camps. Other prominent al-Qaeda members were arrested in the following two years, namely Ramzi bin al-Shibh, who is known to have been a financial backer of al-Qaeda operations, and Khalid Sheikh Mohammed, who at the time of his capture was the third highest-ranking official in al-Qaeda and had been directly in charge of the planning for the 11 September attacks.
Document 13: Philadelphia: The Philadelphia County Court of Common Pleas (First Judicial District) is the trial court of general jurisdiction for Philadelphia, hearing felony-level criminal cases and civil suits above the minimum jurisdictional limit of $7000 (excepting small claims cases valued between $7000 and $12000 and landlord-tenant issues heard in the Municipal Court) under its original jurisdiction; it also has appellate jurisdiction over rulings from the Municipal and Traffic Courts and over decisions of certain Pennsylvania state agencies (e.g. the Pennsylvania Liquor Control Board). It has 90 legally trained judges elected by the voters. It is funded and operated largely by city resources and employees. The current District Attorney is Seth Williams, a Democrat. The last Republican to hold the office is Ron Castille, who left in 1991 and is currently the Chief Justice of the Pennsylvania Supreme Court.
Document 14: Alexander Graham Bell: Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born[N 3] scientist, inventor, engineer and innovator who is credited with patenting the first practical telephone.
Document 15: Alexander Graham Bell: Continuing his experiments in Brantford, Bell brought home a working model of his telephone. On August 3, 1876, from the telegraph office in Mount Pleasant five miles (eight km) away from Brantford, Bell sent a tentative telegram indicating that he was ready. With curious onlookers packed into the office as witnesses, faint voices were heard replying. The following night, he amazed guests as well as his family when a message was received at the Bell home from Brantford, four miles (six km) distant, along an improvised wire strung up along telegraph lines and fences, and laid through a tunnel. This time, guests at the household distinctly heard people in Brantford reading and singing. These experiments clearly proved that the telephone could work over long distances.
ground_truth: the 9/11 attacks
sub_queries: In what city was the 1876 Centennial Exposition? Answer: Philadelphia
Federal Detention Center, Philadelphia >> country Answer: the United States
Where did Bush say the 'war on terror' begins? Answer: with al-Qaeda
what is the biggest terrorist attacks by the Islamic terrorist group with al-Qaeda against #2 Answer: the 9/11 attacks