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.

Let me give you an example: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage 1: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lô during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Passage 2: John Ford (1894–1973) was an American film director whose career spanned from 1913 to 1971. During this time he directed more than 140 films. Born in Maine, Ford entered the filmmaking industry shortly after graduating from high school with the help of his older brother, Francis Ford, who had established himself as a leading man and director for Universal Studios. After working as an actor, assistant director, stuntman, and prop man – often for his brother – Universal gave Ford the opportunity to direct in 1917. Initially working in short films, he quickly moved into features, largely with Harry Carey as his star. In 1920 Ford left Universal and began working for the Fox Film Corporation. During the next ten years he directed more than 30 films, including the westerns The Iron Horse (1924) and 3 Bad Men (1926), both starring George O'Brien, the war drama Four Sons and the Irish romantic drama Hangman's House (both 1928 and both starring Victor McLaglen). In the same year of these last two films, Ford directed his first all-talking film, the short Napoleon's Barber. The following year he directed his first all-talking feature, The Black Watch.
. Passage 3: Since the late 1970s, the central part of NYU is its Washington Square campus in the heart of Greenwich Village. Despite being public property, and expanding the Fifth Avenue axis into Washington Square Park, the Washington Square Arch is the unofficial symbol of NYU. Until 2008, NYU's commencement ceremony was held in Washington Square Park. However, due to space constraints, ceremonies are now held at the Yankee Stadium. Important facilities at Washington Square are the Elmer Holmes Bobst Library, designed by Philip Johnson and Richard Foster, who also designed several other structures, such as Tisch Hall, Meyer Hall, and the Hagop Kevorkian Center. When designing these buildings Johnson and Foster also set up a master plan for a complete redesign of the NYU Washington Square campus. However, it was never implemented. Other historic buildings include the Silver Center (formerly known as "Main building"); the Brown Building of Science; Judson Hall, which houses the King Juan Carlos I of Spain Center; Vanderbilt Hall, the historic townhouse row on Washington Square North; The Grey Art Gallery at 100 Washington Square East, housing the New York University art collection and featuring museum quality exhibitions; the Kaufman Management Center; and the Torch Club – the NYU dining and club facility for alumni, faculty, and administrators. Just a block south of Washington Square is NYU's Washington Square Village, housing graduate students and junior and senior faculty residences in the Silver Towers, designed by I. M. Pei, where an enlargement of Picasso's sculpture Bust of Sylvette (1934) is displayed.
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The answer to this example can be: 1
Here is why: The question refers to the 704th unit and task about war which is decribed by Passage 1.

OK. solve this:
Question: How tall is the mountain that is south of the canyon? Passage 1:Granite Canyon is located in Grand Teton National Park, in the U. S. state of Wyoming. The canyon was formed by glaciers which retreated at the end of the last glacial maximum approximately 15,000 years ago, leaving behind a U-shaped valley. The canyon lies between Rendezvous Mountain to the south and Mount Hunt to the north. The trailhead for the canyon is on the Moose–Wilson Road about north of Teton Village. One of the most popular hikes from the trailhead is to Marion Lake by way of the Granite Canyon Trail which traverses the length of the canyon. Another popular hike involves riding the aerial tram located at the Jackson Hole Mountain Resort in Teton Village to the top of Rendezvous Mountain, and then descending back to Teton Village by way of Granite Canyon. The descent from the summit of Rendezvous Peak back to Teton Village is an often steep one with an altitude loss of . The historic Upper Granite Canyon Patrol Cabin is situated near the entrance to the canyon and was listed on the National Register of Historic Places in 1998.
 Passage 2:Through the entire river border, near the eastern shore, the Finnish national road 21/European route E8 runs between Tornio and Kilpisjärvi. The Swedish national road 99 runs near the western shore along most of the border. Bridges across the river border can be found in Karesuvanto/Karesuando (road 959/E45), Muonio (road 954/404), Kolari (road 943/403), Pello (road 937/402) and in Aavasaksa/Övertorneå (road 98). There are also two river bridges in Tornio (one carries the European route E4, also Finnish national road 29), but they don't cross the border. The border is crossed by three roads in Haparanda/Tornio. South of the centre, the Torne River Railway Bridge crosses the river and the border.
 Passage 3:Cybulski started his career with in the youth levels of his local team Bałtyk Gdynia, making his debut against Lechia Gdańsk on 24 March 1980. In his first season with Bałtyk he played 5 times as the team won promotion to the I liga. In his first spell with Bałtyk he made 39 appearances scoring two goals. Cybulski then spent a season with Polonia Gdańsk before joining Lechia Gdańsk the season after. His debut for Lechia came in the Polish SuperCup which the team won by beating Lech Poznań 1-0. That season Cybulski also made 26 appearances scoring two goals as Lechia won the II liga, and played in Lechia's first ever European game in the UEFA Cup Winners' Cup against Juventus. The next four seasons Lechia played in the top division of Poland, with Cybulski making a total of 97 appearances in the I liga. Lechia were relegated at the end of the 1987–88 season to the II liga, with Cybulski leaving the club two seasons later. In his first spell with Lechia he played a total 176 league appearances for Lechia contributing 9 goals for the team. He then spent two seasons in Sweden with Hudiksvalls FF returning to Lechia Gdańsk for a season in 1992 making a further 18 league appearances. In total for Lechia Gdańsk Cybulski made 211 appearances and scored 9 goals. He then had a season in Belgium with CS Jemappes, returning to Poland the season after joining Pomezania Malbork. He played with Pomezania in the 1994–95 season with the club finishing 9th in the II liga, the clubs highest ever league finish. After that historic season for Pomezania he returned to Bałtyk Gdynia, making a further 103 appearances over the next 5 seasons with Bałtyk, with a short 6-month spell at Wierzyca Starogard Gdański in the middle of that 5 season spell. In total at Bałtyk Gdynia he made 142 league appearances scoring 9 times for the club. Cybulski spent the next five seasons with Cartusia Kartuzy in the fourth tier, helping the club to win promotion to the III liga in his final season. He then spent time with Orzeł Trąbki Wielkie, KS Chwaszczyno, Spójnia Sadlinki, and GKS Kowale.

Answer:
1