Input: Read this: 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.
Question: In which year did Romania overthrow its communist government?

Output: 1989

Input: Read this: The structure of hardwoods is more complex. The water conducting capability is mostly taken care of by vessels: in some cases (oak, chestnut, ash) these are quite large and distinct, in others (buckeye, poplar, willow) too small to be seen without a hand lens. In discussing such woods it is customary to divide them into two large classes, ring-porous and diffuse-porous.
Question: Besides ring-porous, what's the other class hardwoods are often divided into?

Output: diffuse-porous

Input: Read this: Maas comments further that "A dictation revised by the author must be regarded as equivalent to an autograph manuscript". The lack of autograph manuscripts applies to many cultures other than Greek and Roman. In such a situation, a key objective becomes the identification of the first exemplar before any split in the tradition. That exemplar is known as the archetype. "If we succeed in establishing the text of [the archetype], the constitutio (reconstruction of the original) is considerably advanced.
Question: The exemplar is otherwise known as what?

Output: the archetype

Input: Read this: The team played its first games in 1876 as a founding member of the National League (NL), eventually becoming known officially as the Chicago Cubs for the 1903 season. Officially, the Cubs are tied for the distinction of being the oldest currently active U.S. professional sports club, along with the Atlanta Braves, which also began play in the NL in 1876 as the Boston Red Stockings (Major League Baseball does not officially recognize the National Association of Professional Base Ball Players as a major league.)
Question: What other team besides the Chicago Cubs is tied for being the oldest currently active U.S. professional sports club?

Output:
Atlanta Braves