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 Input: Question: How many years did the war last that Eden's great-grandfather commanded the 2nd regiment of foot? Passage 1:One of the earliest incumbents, Sir Walter Mildmay, member for Peterborough from 1553 to 1554, subsequently became Chancellor of the Exchequer from 1559 to 1589. Later, in the nineteenth century, William Elliot, Whig member from 1802 until his death in 1819, was Chief Secretary to the Lord Lieutenant of Ireland between 1806 and 1807; the Hon. William Lamb (later the 2nd Viscount Melbourne), Whig member from 1816 to 1819, became Home Secretary in 1830 then Prime Minister from 1834 to 1841; and Sir James Scarlett (later the 1st Baron Abinger), Whig member from 1819 to 1830, was, from 1827, Attorney General for England and Wales.
Passage 2:Eden's great-grandfather was William Iremonger, who commanded the 2nd Regiment of Foot during the Peninsular War and fought under Wellington (as he became) at Vimeiro. He was also descended from Governor Sir Robert Eden, 1st Baronet, of Maryland and, through the Calvert Family of Maryland, he was connected to the ancient Roman Catholic aristocracy of the Arundell and Howard families, some of whom were Roman Catholics like the Dukes of Norfolk and others Anglican such as the earls of Carlisle, Effingham and Suffolk. The Calverts had converted to the Established Church early in the 18th century to regain the proprietorship of Maryland. He was also descendant from the Schaffalitzky de Muckadell family of Denmark, and Bie family of Norway. Eden was once amused to learn that one of his ancestors had, like Churchill's ancestor the Duke of Marlborough, been the lover of Barbara Castlemaine.
Passage 3:Amissah-Arthur was born at Cape Coast on 29 April 1951, the capital of the Central Region of Ghana, at the time organized as British Gold Coast Colony. His mother, Effie Amissah-Arthur is from the Hutchful family while his father, Jabesh Richmond P. Amissah-Arthur, an educator was from the Amissah-Arthur family and served as the second and longest serving headmaster of the Oda Secondary School at Akyem-Oda in the Eastern Region from September 1961 to December, 1977. Both families originated from Cape Coast and are of Fante ethnic origin. Kwesi Amissah-Arthur had five other siblings - one brother and four sisters. He attended the Aboom Methodist 'B' Primary School in Cape Coast and passed the Common Entrance examination from the Akim Oda Methodist School in 1964. He completed his secondary education at the Mfantsipim School, where he obtained the GCE Ordinary Level in 1969 and the GCE Advanced Level in 1971. At Mfantsipim, he was a resident of Lockhart-Schweitzer House. He proceeded to the University of Ghana at Legon, where he obtained the B.Sc. in 1974 and M.Sc. in 1976, both in Economics.

Example Output: 2

Example Input: Question: How long had the London Stock Exchange been in existence for by the year Hamilton quit his membership there? Passage 1:Hamilton followed his mother as a Christian Scientist, and attended Claremont Fan Court School and then Eton College. He did National Service in the Coldstream Guards from 1955 to 1958. His father had been wounded while serving with the same regiment in the Second World War. Hamilton then worked in the City of London as a gilts broker. He was a member of the London Stock Exchange from 1967 to 1980. He remained in the City for only a short period, leaving when he inherited two estates from his father's cousin. He married his wife, Corinna Dixon, in 1967, and they had four sons together. He succeeded his father as Baron Hamilton of Dalzell in 1990, inheriting land near and properties in the village of Betchworth in Surrey, and a Regency mansion.
Passage 2:As a backbencher in Ralph Klein's Progressive Conservative caucus, Knight moved a number of government bills. The first was 2003's Electric Utilities Act, which made some changes to the government's deregulation of the province's electricity market. Much of the debate around the bill was about whether the government's deregulation had worked well to date. The bill was passed on a party line vote, with Knight's fellow Progressive Conservatives voting unanimously in favour and the opposition Liberals and New Democrats voting unanimously against. Knight also sponsored the Securities Amendment Acts, separate bills with the same name from different years, 2005 and 2006. The first of these was designed to harmonize the securities regulation with that of other provinces. It was supported by Liberals Rick Miller and Bill Bonko, who considered it a step in the right direction. New Democrats gave it a mixed reception, with Ray Martin agreeing that it did make some improvements, but with his colleague David Eggen trying to kill it on third reading, saying that what was needed was a supra-provincial securities regulator. The 2006 edition of the Securities Amendment Act implemented further harmonization, and passed with little debate. The Securities Transfer Act of the same year consolidated and harmonized the province's rules for transferring securities, and passed with all-party support.
Passage 3:On January 13, UFC revealed this event was originally intended to take place at Arena da Baixada (a much larger venue) in Curitiba, Brazil, and feature a UFC Heavyweight Championship rematch between champion Fabricio Werdum and former two-time champion Cain Velasquez, with former UFC Middleweight Champion Anderson Silva in the co-main event slot, possibly against Michael Bisping. Due to a series of injuries, the company moved the heavyweight bout to a separate event scheduled for February 6, which at that time was . This change made the March 5 event a smaller draw, which led to the transition to the smaller venue in Rio de Janeiro. To maintain local interest, the company then considered booking the main event as a rematch between two Brazilian fighters, Silva and former UFC Light Heavyweight Champion Vitor Belfort. Belfort declined the bout, as he wished to wait for the result of the middleweight title fight at UFC 194. This final fall-through is what prompted the cancellation of the event in Brazil and relocation to Las Vegas. On January 27, it was revealed the Werdum-Velasquez bout (which had been moved to "UFC 196" scheduled for February 6, 2016) was cancelled entirely. This forced that event to alter into a "UFC Fight Night" card, and the originally scheduled "UFC 197" event was renamed UFC 196.

Example Output: 1

Example Input: Question: How deep is the smaller lake that is part of the Malawi system? Passage 1:German Type IXD2 submarines were considerably larger than the original Type IXs. U-861 had a displacement of when at the surface and while submerged. The U-boat had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines plus two MWM RS34.5S six-cylinder four-stroke diesel engines for cruising, producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of for use while submerged. She had two shafts and two propellers. The boat was capable of operating at depths of up to .
Passage 2:Born in Cleckheaton, West Yorkshire, Strodder came through the youth system of Yorkshire Amateur. He joined Lincoln City in 1982, spending five years at the club and being voted the club's player of the year in 1986, before signing for West Ham United. After three years at West Ham, he moved on to West Bromwich Albion, who he helped to promotion via the playoff final at Wembley Stadium in a team managed by Argentinian and Tottenham Hotspur legend Ossie Ardiles. In 1996 he signed for Notts County, where he was selected for the Third Division PFA Team of the Year in 199798. In 199899 he had a spell on loan at Rotherham United, before joining Hartlepool United. In 2001 he dropped into non-League football with Guiseley. After retiring from playing he worked for the community development section at Leeds United, before going into business in Menorca.
Passage 3:Lake Malawi is noted for being the site of evolutionary radiations among several groups of animals, most notably cichlid fish. There are at least 700 cichlid species in Lake Malawi, with some estimating that the actual figure is as high as 1,000 species. The actual number is labelled with some uncertainty because of the many undescribed species and the extreme variation among some species, making the task of delimiting them very complex. Except for four species (Astatotilapia calliptera, Coptodon rendalli, Oreochromis shiranus and Serranochromis robustus), all cichlids in the lake are endemic to the Malawi system, which also includes nearby smaller Lake Malombe and the upper Shire River. Many of these have become popular among aquarium owners due to their bright colors. Recreating a Lake Malawi biotope to host cichlids became quite popular in the aquarium hobby. Most Malawi cichlids are found in relatively shallow coastal waters, but Diplotaxodon has been recorded down to depths of and several (especially Diplotaxodon, Rhamphochromis and Copadichromis quadrimaculatus) are known from pelagic waters.

Example Output:
3