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: Which town was near the camp that, until May 1942, the Germans used it to mostly kill off Jews from Belgrade and other parts of Serbia? Passage 1:William Alfred Passavant was born in 1821 in Zelienople, Pennsylvania, the third and youngest son of Phillipe Louis Passavant and Fredericka Wilhelmina Basse (nicknamed "Zelie," hence the town's name). His grandfather, Baron Dettmar Basse, born in Iserlohn in the Ruhr Valley in what was then the Grand Duchy of Hesse and later became Germany, spent a decade in Paris as a diplomat and merchant before fleeing the Napoleonic Wars and emigrating to Philadelphia and then Pittsburgh in 1801. Drawn by the prospect of religious freedom and economic opportunity, the widower Baron bought 10,000 acres along Connoquenessing Creek in Butler County, Pennsylvania, began building a wood framed castle, and founded (with Christian Buhl) a new town complete with sawmill, brickyard, and an iron furnace. He also traveled and sent glowing letters back to Germany, persuading his daughter and her new husband (a French Huguenot who fled after repeal of the Edict of Nantes) to emigrate in 1807 from Frankfurt.
 Passage 2:The 1st King's Dragoon Guards was a cavalry regiment in the British Army. The regiment was raised by Sir John Lanier in 1685 as the 2nd Queen's Regiment of Horse, named in honour of Queen Mary, consort of King James II. It was renamed the 2nd King's Own Regiment of Horse in 1714 in honour of George I. The regiment attained the title 1st King's Dragoon Guards in 1751. The regiment served as horse cavalry until 1937 when it was mechanised with light tanks. The regiment became part of the Royal Armoured Corps in 1939. After service in the First World War and the Second World War, the regiment amalgamated with the 2nd Dragoon Guards (Queen's Bays) in 1959 to form the 1st The Queen's Dragoon Guards.
 Passage 3:After the April war of 1941 when Germany and its allies occupied and partitioned the Kingdom of Yugoslavia, entire Syrmia region (including the left bank of the Sava) became part of the Independent State of Croatia where they set the Ustaše regime. Nazi secret police, Gestapo, took over Sajmište. They encircled it with several rings of barbed wire turning it into what they referred to as "collection center" – a euphemism for a prison. It eventually became a concentration camp. Until May 1942 Germans used Sajmište concentration camp to mostly kill off Jews from Belgrade and other parts of Serbia. From April 1942 onwards, Serbian prisoners were transported in from Jasenovac and Stara Gradiška concentration camps run by ISC Croatian Ustaše. Partisans captured throughout Serbia were also sent to Sajmište. Detainees were also sent in from other parts of Yugoslavia, especially Serbs after major German offensives on briefly liberated territories. Executions of captured prisoners lasted as long as the camp existed. During their heavy “Easter bombing” of Belgrade, Allied aircraft bombed Sajmište on 17 April 1944, killing some 100 inmates and inflicting heavy damage on the camp itself, destroying all the buildings except for the Spasić pavilion and the Central tower..

Example Output: 3

Example Input: Question: How long had the WACA Ground been in existence for the year Millar was part of a pace attack that included David Boyd? Passage 1:Geoffrey Alan Millar (born 22 November 1955) is a former Australian cricketer who played several matches for Western Australia during the early 1980s. From Perth, Millar played at colts level during the late 1970s, generally as an all-rounder. He made his Sheffield Shield debut for Western Australia during the 1981–82 competition, and failed to take a wicket in what was to be his only first-class match. In the match, against Queensland at the WACA Ground in February 1982, he was part of a pace attack that included David Boyd (who he opened the bowling with in the first innings), Mick Malone, and Ken MacLeay. Millar also appeared at List A level several times for Western Australia. In his first match, the third-place playoff of the 1981–82 McDonald's Cup, he took 2/17 and scored 30 runs, and was thus named man of the match. His two further matches both occurred in the following year's tournament. At grade cricket level, Millar played 177 matches for the Mount Lawley District Cricket Club.
 Passage 2:Haskell invented a formula for a waterproof glue in 1913. The glue was made from blood-album. From this glue he made a material of "plies" of crossed grain layers of wood, that is known today as plywood. Haskell named this composite material after himself with the brand name Haskelite. He worked out the mechanics of being able to mold and shape this plywood into three dimensions. From this plywood he made a canoe that was molded from one piece of plywood. The canoe plywood was shaped by hydraulic presses as an innovation devised by Haskell. The unusually designed canoe of no skeleton framework or ribs was given the brand name Arex ("king of the water") and made out of the Haskell Manufacturing Company building on N. Rowe Street in Ludington, Michigan. It later became better known just as the Haskell canoe. Haskell formed the Haskell Manufacturing Company in 1916 to make boats and canoes. He incorporated it with $100,000 in 1917. The Haskell Boat Company made 600 Haskell canoes in the first year.
 Passage 3:He was born in Breslau, Prussia (now the Polish city of Wrocław), into a wealthy Polish-Jewish family whose parents had come to Breslau from Pilica, near Zawiercie, in 1854. He was an ardent Jew at a time when many Jews downplayed their Jewishness. He showed early talent from a very tender age, beginning his musical training at home until 1865, when his family moved to Dresden. There he continued his piano studies at the conservatory. He moved to Berlin in 1869 to continue his studies first at the Julius Stern's Conservatory, where he studied piano with Eduard Franck and composition with Friedrich Kiel, and then at Theodor Kullak's Neue Akademie der Tonkunst, where he studied composition with Richard Wüerst and orchestration with Heinrich Dorn. There he became close friends with the Scharwenka brothers, Xaver and Philipp. In 1871 he accepted Kullak's offer to become a teacher in his academy; as he was also a more than competent violinist, he sometimes played first violin in the orchestra.

Example Output: 1

Example Input: Question: What major river runs through the city where station KNVA is located? Passage 1:The team's first feud was against The Midnight Rockers, whom they defeated for the AWA World Tag Team Championship on March 19, 1988. During their year long title reign, Badd Company would feud heavily with Chavo and Mando Guerrero and the team known as the Top Guns (Ricky Rice and Derrick Dukes). They teamed with Madusa Miceli to face the team of the Top Guns and Wendi Richter at the first AWA PPV, SuperClash III. Both Badd Company's Tag Team Title and Wendi Richter's AWA World Women's Championship were on the line, but since Richter pinned Miceli, Badd Company remained the champions. Diamond and Tanaka's reign ended on March 25, 1989 as they lost to "the Olympians" (Brad Rheingans and Ken Patera). Shortly after losing their titles they split from Page, and had a short feud against each other before wrestling in singles competition until early 1990. Just before moving to the WWF, Diamond teamed with The Trooper Del Wilkes for a short run at the AWA Tag Team Titles against The Destruction Crew (Mike Enos and Wayne Bloom). Diamond and Trooper actually defeated The Destruction Crew, but were not awarded the titles when it was determined that Diamond pinned the wrong person.
 Passage 2:Early in the Global War on Terror, Fontes served at US Central Command J5 overseeing issues of political-military cooperation in Afghanistan. In June 2004, she was moved to Combined Forces Command - Afghanistan headquarters in Kabul and served under David Barno as the head of the CJ5 staff for political-military coordination. Her staff was responsible for keeping General Barno "on message", overseeing the policies impacting military operations, and performing liaison work with both the Afghan Ministry of Defense and United Nations Assistance Mission in Afghanistan. At the end of her first year in Afghanistan and following Karl Eikenberry's assumption of command from Barno, Fontes volunteered to lead the Provincial Reconstruction Team (PRT) in Tarinkot. Daniel Green, the political adviser for the PRT, reported that though some Soldiers at the PRT had initial concerns due to her gender, those worries were shortly put to rest. She had been active in engaging with the Afghan people. Green said that Fontes, then a Lieutenant Colonel, pitched in a few hundred dollars of her own money to host a lunch on the PRT for local Afghan leaders. An article in Vanity Fair relates a story that she once refused to depart a meeting with Afghan elders in Chora District under threat of small arms fire, for fear of appearing weak in the face of the Taliban. Green asserts that in early 2006, she survived the first suicide vehicle-borne improvised explosive device attack in Urozgan Province due in part to the device's failure to detonate all of the mortar shells of which it was comprised. She departed Afghanistan in May 2006 to attend the US War College, graduating in 2007. She had been promoted that year to colonel. She was subsequently assigned as the chief of the American Security Assistance Office in Pakistan.
 Passage 3:These two stations were once dual affiliates of both The CW and MyNetworkTV since their 2006 debuts: KWKB in Iowa City, Iowa, owned by KM Communications, which carried both The CW (as a primary) and MyNetworkTV (as a secondary), but dropped MyNetwork in September 2011; KNVA in Austin, Texas, owned by LIN Television, was the other, until it dropped the network on October 20, 2009. However, in March 2014, WKTC in Columbia, South Carolina, a locally owned station, switched its main channel's primary affiliation from MyNetworkTV to The CW, retaining MyNetworkTV as a secondary affiliation, making it one of three stations in the country that currently carry both The CW and MyNetwork on the same feed (WKTC would be joined in September 2016 by FTS-owned WPWR-TV in Chicago, licensed to Gary, Indiana, and in July 2018 by WUAB in Cleveland, licensed to Lorain, Ohio, in carrying both netlets on their primary channel). In addition, WTVY in Dothan, Alabama, a CBS affiliate owned by Gray Television, now carries MyNetworkTV on a digital subchannel which was previously affiliated with UPN, and also added a third digital subchannel for The CW. WTOK-TV in Meridian, Mississippi, also owned by Gray, has added a secondary MyNetworkTV affiliation to its then-Fox-affiliated digital subchannel and added another digital subchannel for The CW, in addition to ABC on its main channel.

Example Output:
3