Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On 25 February 1991, the Warsaw Pact was declared disbanded at a meeting of defense and foreign ministers from remaining Pact countries meeting in Hungary. On 1 July 1991, in Prague, the Czechoslovak President Vaclav Havel formally ended the 1955 Warsaw Treaty Organization of Friendship, Cooperation, and Mutual Assistance and so disestablished the Warsaw Treaty after 36 years of military alliance with the USSR. In fact, the treaty was de facto disbanded in December 1989 during the violent revolution in Romania, which toppled the communist government, without military intervention form other member states. The USSR disestablished itself in December 1991.
In which year did Romania overthrow its communist government?
A: 1989

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 2008, the High Court in South Africa ruled that Chinese South Africans who were residents during the apartheid era (and their descendants) are to be reclassified as "Black people," solely for the purposes of accessing affirmative action benefits, because they were also "disadvantaged" by racial discrimination. Chinese people who arrived in the country after the end of apartheid do not qualify for such benefits.
Why did some Chinese citizens qualify for benefits?
A: they were also "disadvantaged" by racial discrimination.

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
An airport is an aerodrome with facilities for flights to take off and land. Airports often have facilities to store and maintain aircraft, and a control tower. An airport consists of a landing area, which comprises an aerially accessible open space including at least one operationally active surface such as a runway for a plane to take off or a helipad, and often includes adjacent utility buildings such as control towers, hangars and terminals. Larger airports may have fixed base operator services, airport aprons, air traffic control centres, passenger facilities such as restaurants and lounges, and emergency services.
What is an airport?
A: aerodrome with facilities for flights to take off and land

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
A HDI of 0.8 or more is considered to represent "high development". This includes all developed countries, such as those in North America, Western Europe, Oceania, and Eastern Asia, as well as some developing countries in Eastern Europe, Central and South America, Southeast Asia, the Caribbean, and the oil-rich Arabian Peninsula. Seven countries were promoted to this category this year, leaving the "medium development" group: Albania, Belarus, Brazil, Libya, Macedonia, Russia and Saudi Arabia.
What is the smallest country that was included among the seven promoted countries?
A:
unanswerable