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.

Input: Consider Input: Question: Where did Dudow work with Leopold Jessner? Passage 1:Dudow was born in Zaribrod, Bulgaria (today Dimitrovgrad, Serbia). In 1922, he emigrated to Berlin with the intention of becoming an architect. He gave up this plan and began studying theatre in 1923, first under Emmanuel Reicher, and then, from 1925 to 1926, as a theatre studies student under Max Herrmann at the university. He worked with Leopold Jessner and Jürgen Fehling, served as a chorus member under Erwin Piscator, and was a director's assistant to Fritz Lang on the production of Metropolis. During this time, Dudow also ran a bookstore with his wife and worked as a foreign correspondent for a Bulgarian newspaper. In 1929, he visited the Soviet Union, where he met Vladimir Mayakovsky and Sergei Eisenstein in Moscow and eventually, Bertolt Brecht. After his return from the USSR, Dudow directed Brecht's theatrical piece, The Decision (Die Massnahme), and began his film directing career. He was commissioned by the left-wing, Soviet-German production company Prometheus-Film to direct a short film, Wie der Berliner Arbeiter wohnt (1929), as part of the documentary series Wie lebt der Berliner Arbeiter? Dudow's first feature, Kuhle Wampe (To Whom Does the World Belong?, 1932) was a collaboration with Brecht (who provided the script and helped finance the project), Hanns Eisler, and Ernst Ottwalt. It was banned because it was perceived as being politically subversive. 
 Passage 2:Boulding maintained his links with football and trained with Doncaster Rovers, and in 1998 he joined non-league Hallam near his home in Sheffield. His form at Hallam attracted the interest of a number of league clubs, and Boulding was offered a trial by Mansfield Town. He was given a contract by the Division Three side and turned professional in 1999, which brought an end to his tennis career. He made his debut with Mansfield in a League Cup game against Nottingham Forest on 11 August 1999 as a late substitute for Gary Tallon, before his first league game came three days later against Cheltenham Town. He had to wait until his 12th game as a professional to register his first goal when he scored in a 2–1 victory over Shrewsbury Town on 23 October. He eventually finished his first season with six goals with Mansfield coming 17th but 17 points above Carlisle United, the only side to be relegated out of The Football League.
 Passage 3:Jones was selected by the Dallas Cowboys in the first round (24th overall) of the 1992 NFL Draft, becoming the first player from East Carolina University to be drafted that high. The team moved Ken Norton Jr. to outside linebacker, allowing him to become the second rookie (Eugene Lockhart) in Cowboys history to start at middle linebacker, and the second rookie (Lee Roy Jordan) linebacker in franchise history to start in a season-opener. He helped the Cowboys establish the top defense in the league in 1992, was named NFC rookie of the year and was selected to the NFL All-rookie team. He started 13 out of 15 games, posting 108 tackles (second on the team), one sack, 2 tackles for loss, 4 quarterback pressures, one pass defensed and one fumble recovery. He had 16 tackles against both the Philadelphia Eagles and Kansas City Chiefs.


Output: 1


Input: Consider Input: Question: When was the Aroostook War? Passage 1:The area was at the centre of the Aroostook War, a skirmish over boundary lines between the U.S.A. and what was then British North America. Originally confined to a disagreement between the State of Maine and the Colony of New Brunswick, the dispute eventually spread to involve the Government of the United States in Washington, D.C. and the British Colonial Administration in Quebec City, seat of the Governor General of Canada, who had supreme authority over all of British North America, including New Brunswick. In the wake of this international conflict, a small fortification (Fortin du Petit-Sault) was built in anticipation of a possible attack by the Americans, to complement the much larger fortification located at Fort Ingall (now Cabano) in nearby Canada (now Quebec). One of the central figures at the origin of the conflict was American-born industrialist "Colonel" John Baker, who had established sawmills and other lumber-related industries on the eastern shores of the Saint John river, an area claimed by the British that Baker wanted to be declared part of Maine as he was a fiercely nationalist American.
 Passage 2:The sculptor is unknown, although Paul MacKendrick suggests that Pythokritos of Lindos is responsible. When first discovered on the island of Samothrace (then part of the Ottoman Empire and called Semadirek) and published in 1863, it was suggested that the Victory was erected by the Macedonian general Demetrius Poliorcetes after his naval victory at Cyprus, between 295 and 289 BC. The Archaeological Museum of Samothrace continues to follow these originally established provenance and dates. Ceramic evidence discovered in recent excavations has revealed that the pedestal was set up about 200 BC, though some scholars still date it as early as 250 BC or as late as 180. Certainly, the parallels with figures and drapery from the Pergamon Altar (dated about 170 BC) seem strong. The evidence for a Rhodian commission of the statue has been questioned, however, and the closest artistic parallel to the Nike of Samothrace are figures depicted on Macedonian coins. Samothrace was an important sanctuary for the Hellenistic Macedonian kings. The most likely battle commemorated by this monument is, perhaps, the Battle of Cos in 255 BC, in which Antigonus II Gonatas of Macedonia won over the fleet of Ptolemy II of Egypt.
 Passage 3:Ari Brynjolfsson was born in Akureyri, Iceland, one of the seven children of Brynjólfur Sigtryggsson and Guðrún Rósinkarsdóttir from Hörgárdalur. He lived in Krossanes, Eyjafjörður and graduated from Menntaskólinn á Akureyri in 1948, then studied nuclear physics at the Niels Bohr Institute, University of Copenhagen, Denmark, from 1948 to 1954, gaining his PhD, with a thesis which dealt with a device he had constructed for accurately measuring magnetism in rocks. Following this he became a special research fellow of the University of Iceland from 1954 to 1955, then an Alexander von Humboldt fellow of the University of Göttingen, Germany, from 1955 to 1957. While at Göttingen he contributed important work in magnetic moments, using a self-devised instrument with which he and others provided the strongest evidence to that date for magnetic field reversals.


Output: 1


Input: Consider Input: Question: What are the symptoms of Castleman's disease? Passage 1:As far back as 1854, the famous glass exhibition building known as The Crystal Palace had been relocated from Hyde Park, London and rebuilt in an area of South London next to Sydenham Hill. This area was renamed Crystal Palace including the park surrounding the site where various sports facilities were built. The earliest known Crystal Palace football team first played here in 1861 as an amateur outfit. They went on to become founder members of the Football Association and competed in the very first FA Cup competition reaching the semi-finals where they were eliminated by the Royal Engineers in a replay after the first game ended goalless. The team also played in the FA Cup in the next four seasons before disappearing from historical records after a 0–3 defeat to eventual winners Wanderers in the second round of the 1875–76 FA Cup. In 1895, the Football Association adopted a new permanent home for the FA Cup Final which was to be played at the sports stadium situated inside the historic grounds of the Palace. With the owners also reliant on tourist activity for their income, they sought fresh attractions for the venue, and founded the London County Cricket Club of W. G. Grace before turning their attention to football.
 Passage 2:The first known settlers in the area of modern Nashville were Native Americans who arrived in the region by at least 13,000 BC during the Paleoindian period of regional prehistory. For millennia the descendants of these first Tennesseans continued to live along the river terraces and uplands overlooking the Cumberland River, leaving behind a dense archaeological record spanning the Paleoindian, Archaic, Woodland, and Mississippian periods. The final prehistoric Native American culture to inhabit what would become Nashville was a regional manifestation of the Mississippian Culture known as Middle Cumberland Mississippian, identified by archaeologists based on the specific combination of burial practices, artistic style, and ceramic styles. Recent studies suggest that Middle Cumberland Mississippian culture may be the result of interactions between local populations and outsiders from the American Bottom who moved into the western portion of the Nashville Basin around AD 1000, settling at the site of Mound Bottom. The archaeological footprint of the Middle Cumberland Mississippian culture appears throughout Nashville as the many platform mounds, extensive stone box cemeteries, palisaded villages, and small prehistoric farmsteads that have been destroyed by antiquarian scholars, relic hunters, and urban development. All archaeological evidence for Mississippian culture appears to vanish from the Nashville area by around AD 1475–1500. Archaeologists believe this regional collapse may have been the result of extreme pressures brought on by rapid population growth and dwindling resource availability following prolonged droughts leading to increased occurrences of disease, nutritional deficiencies, and warfare.
 Passage 3:Herpesviruses are a third group of common cancer-causing viruses. Two types of herpesviruses have been associated with cancer: the Epstein–Barr virus (EBV) and human herpesvirus 8 (HHV-8). EBV appears to cause all nonkeratinizing nasopharyngeal carcinomas and some cases of lymphoma, including Burkitt's lymphoma—the association is especially strong in Africa—and Hodgkin's disease. EBV has also been found in a variety of other types of cancer cells, although its role in causing these other cancers is not well established. KSHV/HHV-8 causes all cases of Kaposi's sarcoma, and has been found in some cases of a cancer-related condition called Castleman's disease. Studies involving other kinds of cancer, particularly prostate cancer, have been inconsistent. Both of these herpesviruses are commonly found in cancerous cells of primary effusion lymphoma. Herpesviruses also cause cancer in animals, especially leukemias and lymphomas.



Output: 3