Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In a press conference held by the State Council Information Office the day after the earthquake, geologist Zhang Xiaodong, deputy director of CEA's Seismic Monitoring Network Center, restated that earthquake prediction was a global issue, in the sense that no proven methods exist, and that no prediction notification was received before the earthquake. Seismologist Gary Gibson of Monash University in Australia told Deutsche Presse-Agentur that he also did not see anything that could be regarded as having 'predicted' the earthquake's occurrence.
What was received before the quake occurred?
A: no prediction notification

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Port of Nanjing is the largest inland port in China, with annual cargo tonnage reached 191,970,000 t in 2012. The port area is 98 kilometres (61 mi) in length and has 64 berths including 16 berths for ships with a tonnage of more than 10,000. Nanjing is also the biggest container port along the Yangtze River; in March 2004, the one million container-capacity base, Longtan Containers Port Area opened, further consolidating Nanjing as the leading port in the region. As of 2010, it operated six public ports and three industrial ports.
How long is the Port of Nanjing?
A: 98 kilometres (61 mi) in length

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Eritrea is a member of the United Nations, the African Union, and is an observing member of the Arab League. The nation holds a seat on the United Nations' Advisory Committee on Administrative and Budgetary Questions (ACABQ). Eritrea also holds memberships in the International Bank for Reconstruction and Development, International Finance Corporation, International Criminal Police Organization (INTERPOL), Non-Aligned Movement, Organization for the Prohibition of Chemical Weapons, Permanent Court of Arbitration, and the World Customs Organization.
What is the acronym for the International Bank for Reconstruction and Development?
A: unanswerable

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Executive power is vested, with exceptions and qualifications, in the President. By law (Section 2.) the president becomes the Commander in Chief of the Army and Navy, Militia of several states when called into service, has power to make treaties and appointments to office "with the Advice and Consent of the Senate," receive Ambassadors and Public Ministers, and "take care that the laws be faithfully executed" (Section 3.) By using these words, the Constitution does not require the president to personally enforce the law; rather, officers subordinate to the president may perform such duties. The Constitution empowers the president to ensure the faithful execution of the laws made by Congress and approved by the President. Congress may itself terminate such appointments, by impeachment, and restrict the president. Bodies such as the War Claims Commission, the Interstate Commerce Commission and the Federal Trade Commissionall quasi-judicialoften have direct Congressional oversight.
What is a Congressional means of removing presidential appointees?
A:
impeachment