In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

[EX Q]: Question: What country is the observatory located in that Pustolnik was on the staff of for forty-three years? Passage:A native of the Ukrainian port city of Odessa (a part of the Soviet Union until 1991), Izold Pustolnik graduated cum laude from Odessa University in 1960 and received his Ph.D. from the University of Tartu in 1969 and his D.Sc. from Saint Petersburg State University in 1994. From the age of 27 in 1965 until his death forty-three years later, he was on the staff of Tartu Observatory where, as a research associate (promoted to senior research associate in 2000), he worked on the physics of close binary systems, theory of stellar atmospheres, interstellar medium, archaeoastronomy and history of astronomy. He was also a member of the International Astronomical Union, European Astronomical Society, Euroscience, Society for European Astronomy in Culture (SEAC) and served on the Board of Euro-Asian Astronomical Society and the Advisory Board of Astronomical and Astrophysical Transactions.

[EX A]: From the age of 27 in 1965 until his death forty-three years later, he was on the staff of Tartu Observatory where, as a research associate (promoted to senior research associate in 2000), he worked on the physics of close binary systems, theory of stellar atmospheres, interstellar medium, archaeoastronomy and history of astronomy

[EX Q]: Question: How many square miles in size is the country that Russian Empress Catherine the Great laid out plans to incite revolts across? Passage:With the outbreak of the Russo-Turkish War in August 1787, Russian Empress Catherine the Great laid out her plans to incite revolts across Ottoman Greece. Proclamations calling the Greek clergy to lead a war of liberation against the Ottomans were printed in September 1787 and February 1788. In March, Admiral Samuel Greig and Major-General Ivan Zaborovsky were tasked with signing alliances and facilitating revolts among the Christian populations in Dalmatia, Albania and Greece. The Russian consulate in the Heptanese activated its network of sleeper agents who had originally been recruited before the Orlov revolt. Louitzis Sotiris and Himariot Panos Bitsilis begin recruiting soldiers in the area of Epirus, while Antonis Psaros and Lambros Katsonis built a small naval force in Italy. For the most part Russian plans did not materialize as the Baltic Fleet failed to reach the Mediterranean Sea. Without its assistance most of Russia's local allies refused to take part in the rising.

[EX A]: With the outbreak of the Russo-Turkish War in August 1787, Russian Empress Catherine the Great laid out her plans to incite revolts across Ottoman Greece

[EX Q]: Question: In what stadium was the September 8 game played? Passage:When Epstein's field goal attempt for the 2001 Wolverines was blocked on September 8 with 9:11 remaining against Washington and run back for a touchdown, it gave the Huskies a lead that they would not relinquish on the way to a 2318 game. Epstein made a 51-yard field goal against Iowa on October 27 to give Michigan a 6-point lead with 3:57 remaining. The 3226 score held up. He posted a school record 57-yard field goal against Michigan State in the November 3, 2001 MichiganMichigan State football rivalry game known as Clockgate. However, later in the game, Epstein's short punt and two Michigan penalties, made way for Michigan State's controversial game-winning drive. He made the game-winning 31-yard field goal against the Wisconsin on November 17, 2001 with 10 seconds left. Epstein set up the field goal when his punt bounced off of Badger Brett Bell and was recovered by Brandon Williams with 14 seconds left. In the game 3 of his 8 punts were downed inside the 20 yard line, including a 48-yarder that was downed on the 1-yard-line to set up Michigan's first score. 3 of his 5 kickoffs were touchbacks and a fourth one into the end zone was just returned 15 yards. Epstein's performance earned him Big Ten Special Teams Player of the Week recognition and his 8 points (2 FGs and 2 PATs) gave him the team scoring lead with 69 points. He finished the season with 76 points (1320 FGs and 3737 PATs) and 71 punts for 2790 yards (39.3 average/17 inside 20). Epstein's single-season punt yardage total was a school record that was surpassed the following season by Adam Finley. His 76 points just edged out B. J. Askew's 72 points and Marquise Walker's 68 points. Epstein earned All-Big Ten Conference second team honors as a placekicker from the coaches and honorable mention honors by both the coaches and media as a punter. He concluded his career by making 2 field goals in the January 26, 2002 Senior Bowl.

[EX A]:
When Epstein's field goal attempt for the 2001 Wolverines was blocked on September 8 with 9:11 remaining against Washington and run back for a touchdown, it gave the Huskies a lead that they would not relinquish on the way to a 2318 game