You will be given a definition of a task first, then an example. Follow the example to solve a new instance 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: 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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Solution: 1
Why? The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input: Question: Who was the winner for Copa América during which Sánchez scored against Ecuador? Passage 1:Alexis Sánchez is a Chilean professional footballer who represents the Chile national football team as a striker. Nicknamed El Niño Maravilla ("The Boy Wonder"), he made his debut for his country in a 1–0 victory over New Zealand in April 2006. His first international goal came on his eighth appearance for Chile when he scored Chile's only goal in a 2–1 defeat to Switzerland in a friendly tournament in Vienna. , Sánchez is his country's top scorer and has the most caps, with 43 goals in 132 appearances. He passed the previous record of 37, held by Marcelo Salas, when he scored the opening goal against Germany in the group stage of the 2017 FIFA Confederations Cup in June 2017. He scored most recently against Ecuador in a 2–1 win during the 2019 Copa América. Despite Sánchez scoring seven goals, making him second-equal top scorer in 2018 FIFA World Cup qualifying (along with Lionel Messi, Gabriel Jesus and Felipe Caicedo), Chile failed to qualify for the finals. Sánchez made his most recent and 132nd appearance for Chile in a 0–0 draw against Colombia in October 2019.
 Passage 2:McDowell appeared as Dr. Samuel Loomis in Rob Zombie's remakes of Halloween and Halloween II (in 2007 and 2009, respectively). Although the films were not well received critically, they performed better at the box office and McDowell was widely praised for his performances and for being perfectly cast. He also played Desmond LaRochette in Robert Whitlow's The List (2007), and Irish patriarch Enda Doyle in Red Roses and Petrol (2003). His next film is the Canadian vampire comedy rock and roll film Suck (2009) with actor/director Rob Stefaniuk and the upcoming Alex Wright film Two Wolves. In December 2009, he made an appearance in the music video "Snuff" by the heavy metal band Slipknot. He appears, uncredited, as the curator Lombardi, in the film The Book of Eli (2010). McDowell portrayed Satan in the Christian comedy thriller film Suing the Devil (2011).
 Passage 3:When Jaya Prada was a teenager, she performed a dance at her school's annual function. A film director in the audience offered her a three-minute dance number in the Telugu film Bhoomi Kosam. She was hesitant, but her family encouraged her to accept it. She was paid only 10 rupees for her work in the film, but the rushes of those three minutes of film were shown to the major figures of the Telugu film industry. Major filmmakers offered her starring roles in quality films, and she accepted them. She became a huge star in 1976 with major hit films. Director K. Balachander's black-and-white film Anthuleni Katha (1976) showcased her dramatic skills; K. Viswanath's color film Siri Siri Muvva (1976) showed her playing a mute girl with excellent dancing skills; and her title role as Sita in the big-budget mythological film Seetha Kalyanam confirmed her versatility. In 1977, she starred in Adavi Ramudu, which broke box office records and which permanently cemented her star status. The song "Aaresukoboyi Paresukunnanu" performed by Prada and co-star N.T. Rama Rao became a mass hit. Important filmmakers were casting her and repeating her in their films. Filmmaker Vijay introduced her to Kannada cinema in his 1977 super-hit movie Sanadi Appanna alongside Kannada matinee idol Raj Kumar. The movie is also known to be the only movie to feature shehnai rendition by Ustad Bismillah Khan. Jaya Prada repeated her successful pairing with Rajkumar in films such as Huliya Halina Mevu (1979), Kaviratna Kalidasa (1983) and Shabdavedhi (2000). In 1979, K. Balachander repeated her in the Tamil film Ninaithale Inikkum opposite Kamal Haasan and Rajinikanth in which she played a terminally-ill patient. She continued to act in more films in Telugu opposite actors such NTR, ANR, Krishna, Krishnam Raju and Sobhan Babu throughout the 70s and 80s. K. Viswanath remade Siri Siri Muvva (1976) in Hindi as Sargam, introducing Jayaprada to Bollywood in 1979. The film was successful and she became a star there as well. She earned her first Filmfare nomination as Best Actress but couldn't capitalize on her success since she couldn't speak Hindi.

Solution:
1