Given the task definition, example input & output, solve the new input case.
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.
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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Output: 1
The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input case for you: Question: How many days after he broke his leg did Port Vale defeat the Bristol Rovers? Passage 1:In 1897, a European exhibitor first screened a selection of silent short films at the Victoria Public Hall in Madras. The films all featured non-fictional subjects; they were mostly photographed records of day-to-day events. In Madras (present-day Chennai), the Electric Theatre was established for the screening of silent films. It was a favourite haunt of the British community in Madras. The theatre was shut down after a few years. This building is now part of a post office complex on Anna Salai (Mount Road). The Lyric Theatre was also built in the Mount Road area. This venue boasted a variety of events, including plays in English, Western classical music concerts, and ballroom dances. Silent films were also screened as an additional attraction. Swamikannu Vincent, an employee of the South Indian Railways in Coimbatore, purchased a film projector and silent films from the Frenchman Du Pont and set up a business as film exhibitor. He erected tents for screening films. His tent cinema became popular and he travelled all over the state with his mobile unit. In later years, he produced talkies and also built a cinema in Coimbatore.
 Passage 2:He joined Third Division club Port Vale in October 1987, manager John Rudge splashing out £20,000. Scoring on his debut at Vale Park in a 2–1 win over Bristol Rovers on 19 October, he was soon a big hit, becoming the club's joint-top scorer in the 1987–88 season with 10 goals (along with Darren Beckford). He played 48 league and cup games in 1988–89 but broke his leg in a 1–1 draw at Bolton Wanderers on 25 April 1989, and so missed out on the play-off final victory over Bristol Rovers. He managed to recover, but did not re-capture his first team position and in March 1990 was loaned back to Peterborough United, who were then under Mark Lawrenson's stewardship; Peterborough paid £40,000 for his services on a permanent basis the next month.
 Passage 3:The 2005–06 NBA season would be the first and only NBA season for the 28-year-old 7 ft 0 in center to play in the National Basketball Association (NBA) with the Los Angeles Clippers. During this season, N'Dong barely played any notable parts with the team, appearing in 23 games with a 7-minute per game average, starting only once for them. However, the Clippers would ultimately have a surprising season under their belt in his sole season there, making it to the Western Conference semifinals for the first time in franchise history, barely upsetting the Phoenix Suns in the process. In December 2006, he signed with the Russian club Spartak St. Petersburg. N'Dong moved to the Spanish ACB league later that season and signed with Unicaja Málaga for the 2006–07 ACB League Play-Offs to replace the injured Daniel Santiago. On July 14, 2007, he re-signed with Malaga on a one-season contract. He has also played with the Cleveland Cavaliers NBA Summer League squad in 2007.

Output:
2