You will be given a definition of a task first, then some input of the task.
In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: Were Freiburg and Leipzig located in the same country? Passage 1:He attended schools in Brixen and Innsbruck and served as a nurse during the Franco-Prussian War. In 1871, following his father's wishes, he began studying economics, eventually attending schools in Leipzig, Breisgau and Freiburg, where he was a member of the Corps Suevia Freiburg. His interest in hunting led him to give up his studies and take positions as a game warden and forester, first for the estates of Count Ernst II, then in Schillersdorf, Upper Silesia, for Nathaniel Meyer von Rothschild., but he had to quit due to an illness. After convalescing in Munich an acquaintance, Eduard von Grützner, suggested art as a career, so Pfretzschner studied sculpture with Edmund von Hellmer in Vienna and Ludwig Manzel in Berlin, where he worked from 1891 to 1913, becoming a Professor at the Prussian Academy of Art.
 Passage 2:His 2009 season Schüttler started off at the Chennai Open, beating Prakash Amritraj 6–2, 4–6, 6–1. In the second round, he beat Simon Greul 6–4, 6–2, and in the quarterfinals Björn Phau, 6–2, 7–5. Unfortunately Schuettler had to withdraw from his semifinal match against Somdev Devvarman because of a wrist injury. He also withdrew from the tournament in Sydney. At the Australian Open, he was seeded 30th but lost in the first round to Israeli Dudi Sela 1–6, 6–2, 6–4, 6–4. He also participated in the doubles with Lu Yen-hsun, but they were defeated by Łukasz Kubot and Oliver Marach. In the first round in Rotterdam, he lost to Mario Ančić. He played the Open 13 in Marseille, defeating Laurent Recouderc in the first round 6–1, 6–4.
 Passage 3:Born in Tacoma, Washington to an attorney and his wife who were active New Deal Democrats, Elizabeth Binns wanted to be a lawyer from a young age. Her father sometimes allowed her to skip classes in order to watch him try cases; she graduated from the local public high school at age 16. She then attended Stanford University and graduated with a Bachelor of Arts degree in 1942 at the age of 19. Because so many men were away during World War II, Binns was admitted to the Stanford Law School, and completed one year before marrying Robert L. Fletcher, who was soon assigned to fly anti-aircraft blimps out of Lakehurst, New Jersey. They started a family, and moved back to Lakewood, Washington, after the war. With her parents' assistance in caring for their four young children (and renting out their own house to live in Lakewood), Fletcher resumed her legal education after a decade, now commuting to Seattle to study at the University of Washington School of Law. In 1956 she graduated at the top of her law school class, with a Bachelor of Laws.

Output:
1