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.

Ex Input:
Question: What is the age difference between the two men who Trump asked Zelensky to launch investigations into? Passage 1:A July 25, 2019 telephone call between Trump and Ukraine president Volodymyr Zelensky led in September to a whistleblower complaint and an impeachment inquiry against Trump. Two weeks after the inquiry was launched, Trump claimed in a conference call with Congressional Republican leaders that he had only made the telephone call at Perry's urging. Perry's spokesperson said that Perry had suggested Trump discuss energy security with Zelensky, but energy was not mentioned in the publicly released memo about the conversations, which instead focused on Trump asking Zelensky to launch investigations into Joe Biden, Hunter Biden, Crowdstrike, and the 2016 U.S. presidential election. Per Trump's direction earlier this year, Perry spoke with Rudy Giuliani about Ukraine, which Mick Mulvaney confirmed. Perry denied ever mentioning the Bidens in his discussions with Trump or Ukrainian officials. Mulvaney had put Gordon Sondland, Kurt Volker, and Perry in charge of managing the Ukraine–United States relations instead of diplomats at the National Security Council and the US Department of State. 
 Passage 2:Monckton-Arundell was commissioned a second lieutenant in the Nottinghamshire (Sherwood Rangers) Yeomanry on 1 January 1900, and promoted to lieutenant on 11 June 1902. In 1904, he joined the First Life Guards, the senior regiment of the British Army that makes up the Household Cavalry, where he rose to the rank of colonel. During the First World War he was appointed as adjutant general and quartermaster general. He was of the Royal Artillery (1933–35). In 1933 he was appointed Colonel Commandant of the Honourable Artillery Company (HAC) until 1935, when he relinquished it on appointment as Governor-General of New Zealand. Upon retirement from his post as governor-general he returned as Colonel Commandant of the HAC until his death. He was also appointed Honorary Colonel of the 7th (Robin Hood) Battalion, Sherwood Foresters (later 42nd (The Robin Hoods, Sherwood Foresters) Anti-Aircraft Battalion, Royal Engineers) in 1933.
 Passage 3:Milton B. Carthens (born December 22, 1960) is a former American football player. He graduated from Bloomfield Hills Lahser High School in 1980 and enrolled at the University of Michigan. He played at the tight end position for University of Michigan from 1980 to 1983. In October 1983, Carthens caught two passes for 49 yards, including a 23-yard touchdown pass from Steve Smith Smith in a victory over Michigan State. He was drafted by the Michigan Panthers in the 1984 USFL Territorial Draft. He played in the National Football League for the Indianapolis Colts in 1987, appearing in one game during the 1987 NFL season. He signed with the Detroit Lions in May 1988, but was waived in late August 1988. As of 2010, Carthens was employed as a social worker in Detroit, Michigan.


Ex Output:
1


Ex Input:
Question: How long did the financial period last that delayed work on the park? Passage 1:Gary di Silvestri is a graduate of Monsignor Farrell High School in Staten Island, New York, where he was a member of the football, wrestling and track & field teams. He graduated salutatorian and was awarded the top student athlete on Staten island. He has an undergraduate degree from Georgetown University where he graduated Magna Cum Laude and was inducted into the Phi Beta Kappa National Honor Society. Gary also has a Masters of Business Administration from Columbia University, where he graduated with honors and was inducted into the Beta Gamma Sigma national honors society. He has had a long career in financial services, having worked for Credit Suisse First Boston in London, England; and Morgan Stanley in both London and New York City. In 1997, di Silvestri founded Deutsche Suisse Asset Management, and he said his business success had allowed him to pursue philanthropy full time. 
 Passage 2:On November 29, 2017, at 3 p.m., after playing “End Game” by Taylor Swift, WQMP flipped to alternative rock as Alt 101.9—joining several other former "AMP Radio"-branded stations in switching to the format and brand after the completion of the Entercom merger. The change brought the format back to a full-market signal in Orlando for the first time since 2008, when sister station WOCL flipped to classic hits. The most recent analog broadcast station to air the format full-time, Cox Media's W297BB/WCFB-HD2, was aired on a translator and an HD sub-channel, and aired from June 2014 to January 2016. Elsewhere in the Orlando market, iHeartMedia's talk-formatted WTKS-FM features alternative on nights and weekends, and is also aired on two HD subchannels in the Orlando market, WOCL HD2 and WJRR HD3, the latter of which also uses the brand Alt as standardized by iHeartMedia; this name conflict resulted in WQMP quietly changing its on-air brand to FM 101.9. WQMP's flip to alternative made former sister station WXXL the de facto CHR station in Orlando, until WPYO flipped to CHR from an urban-leaning rhythmic contemporary format in April 2018.
 Passage 3:A $2.5 million bond issue passed in 1922 for a stadium conceived by Burnham. Designed by architects Holabird & Roche and named Soldier Field for the veterans of World War I, cost overruns required another bond issue in 1926. By 1924, the breakwater wall stretched from 14th to 55th Streets. In 1926, Soldier Field and a portion of Lake Shore Drive were opened. Landfilling extended from 23rd Street to 56th Street; however, Promontory Point was not complete, prompting complaints regarding garbage, blowing sand and odors. Throughout the 1920s and 1930s, landfill efforts continued to fill in Burnham Park and the adjacent Northerly Island. The South Development was named for Daniel Burnham on January 14, 1927, and support increased for a world's fair in the park. Construction was completed on Lake Shore Drive, with northbound lanes named for Leif Erikson, and southbound lanes for Christopher Columbus. In 1929, construction of the park at Promontory Point began. The Great Depression delayed work and prevented construction of nearshore islands. Burnham Park was chosen for the site of the Century of Progress world's fair and a yacht basin was built south of 51st Street.


Ex Output:
3


Ex Input:
Question: In which country was Robert Fraser's brother an Emeritus Professor of Opera? Passage 1:The Victor Emmanuel Railway, which included both the Culoz–Modane railway across Savoy and the Turin–Modane railway across Piedmont, was largely built in the 1850s by the Kingdom of Sardinia and named after its king, Victor Emmanuel II. Until 1860 Sardinia included both Savoy and Piedmont. The line from Turin to Susa was inaugurated on 22 May 1854. Work on the tunnel began on 31 August 1857 and was completed in September 1871. Work had begun on the line between Bussoleno and Bardonecchia in 1867 and was completed at the same time as the tunnel. The tunnel and line were opened on 16 October 1871. By that time, the Savoy side of the tunnel had become part of France. The decision of the engineers to begin the line at Bussoleno in order to reduce the gradient on the climb near Meana was much criticized for bypassing the city of Susa, which was left isolated on a short branch line. The opening of the tunnel also led to the closure of the short-lived Mont Cenis Pass Railway. In 1865 the line became part of the network of the Società per le strade ferrate dell'Alta Italia (Upper Italian Railways, SFAI) on its foundation in 1865 and was taken over by the Rete Mediterranea (Mediterranean Network) in 1885. Finally in 1905 it became part of the Ferrovie dello Stato network.
 Passage 2:"Learn the Hard Way" is the album's fourth track. It is the third song on the album, and shares similarities with the song "Never Say Never". The Guy Roche-produced "Almost Doesn't Count" is the fifth track. Brandy performed the song in the 1999 film Double Platinum, starring Diana Ross and herself. The international single "Top of the World" is the album's sixth track. It is a collaboration with Mase and the song talks about Brandy as a popstar just trying to be her and not feeling like being in her own world. In the music video, directed by Paul Hunter, Brandy was featured incurring various supernatural phenomena. She spontaneously floated in the air, flipping and somersaulting above random objects; telephone poles and vehicles, as people stopped to stare. These strange phenomena also included balancing herself vertically and horizontally alongside skyscrapers and buildings. The Darkchild-produced "U Don't Know Me (Like U Used To)", which is the album's seventh and final single, is noted for its remix version with Shaunta and Da Brat. The remix was released as the lead single to the same-named EP. "Never Say Never", also produced by Rodney Jerkins, is the eighth song of the album. "Never Say Never" was released as a Germany single in 2000. "Truthfully", a ballad about a broken relationship, was penned by former Boyz II Men member, singer-songwriter Marc Nelson. Recorded in a single take, it took Nelson five different sessions to get Norwood in the recording studio as she felt initially nervous about working with him. Main production on the song was helmed by Harvey Mason, Jr. who received his first major placement as a producer on "Truthfully". Mason was consulted by Jerkins after he had shopped around several tracks for record executives.
 Passage 3:Fraser was born on 10 May 1947 in Surbiton, Surrey, the second son of Harry MacKenzie Fraser, a London solicitor, and Ada Alice Gittins of Pontypool in the county of Monmouthshire. His brother was Malcolm Fraser (1939–2012), Emeritus Professor of Opera at the University of Cincinnati and co-founder of the Buxton Festival. At the age of eight, Robert Fraser won a choral scholarship to Winchester Cathedral, where he sang the daily services while studying at the Pilgrims School in the Close. Among his fellow choristers were the future newscaster Jon Snow and international tenor Julian Pike. After attending Kingston Grammar School Fraser went on to the University of Sussex to read English with David Daiches and Anthony Nuttall. He later wrote a doctorate on tradition in English poetry at Royal Holloway, University of London where the college's famous gallery of Victorian paintings was to inspire his illustrated volume of poetry The Founders’ Gift: Impressions from a Collection (2017). Simultaneously with his doctorate he studied Harmony, Counterpoint and Composition at Morley College with Melanie Daiken and James Iliff.


Ex Output:

3