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 years had the rapper Skepta been touring before he invited Krept and Konan to tour with him? Passage 1:In 2011, they released a cover of Jay-Z's and Kanye West's "Otis" which helped them rise to fame. The video reached five million views in its first five days of being uploaded to YouTube. However, with much pressure received from Jay-Z's legal team the video was removed from the duo's profile. Undeterred by the controversy, they released a cover of Drake and Lil Wayne's "The Motto", launched their own clothing line called Play Dirty and early into 2012 were invited to join the British rapper Skepta on his tour in the UK. They appeared on Tinie Tempah's 2011 mixtape Happy Birthday and in 2013 they released their third mixtape Young Kingz, with features from Chip, Tinie Tempah, G FrSH, Giggs, George the Poet, Yungen, Ari, Yana Toma, Fekky, Siah and Anthony Thomas. The album's promotional single "Don't Waste My Time" rose to fame in January 2014, with notable artists such as French Montana, Wretch 32, Chip, G FrSH, Double S, Lady Leshurr, Yungen, Sneakbo MNEK, Dru Blu, Jacob Banks and Dot Rotten all contributing to remixes of the track. Tinie Tempah also freestyled over the beat on Charlie Sloth's Fire in the Booth.
 Passage 2:More than 300 Roman Catholics were put to death by English governments between 1535 and 1681 for treason, thus for secular rather than religious offenses. In 1570, Pope Pius V issued his papal bull Regnans in Excelsis, which absolved Catholics from their obligations to the government. This dramatically worsened the situation of the Catholics in England. English governments continued to fear the fictitious Popish Plot. The 1584 Parliament of England, declared in "An Act against Jesuits, seminary priests, and such other like disobedient persons" that the purpose of Jesuit missionaries who had come to Britain was "to stir up and move sedition, rebellion and open hostility". Consequently, Jesuit priests like Saint John Ogilvie were hanged. This somehow contrasts with the image of the Elizabethan era as the time of William Shakespeare, but compared to the antecedent Marian Persecutions there is an important difference to consider. Mary I of England had been motivated by a religious zeal to purge heresy from her land, and during her short reign from 1553 to 1558 about 290 Protestants had been burned at the stake for heresy, whereas Elizabeth I of England "acted out of fear for the security of her realm."
 Passage 3:The ancient Egyptians began dividing the night into  at some time before the compilation of the Dynasty V Pyramid Texts in the 24thcentury. By 2150 (Dynasty IX), diagrams of stars inside Egyptian coffin lids—variously known as "diagonal calendars" or "star clocks"—attest that there were exactly 12 of these. Clagett writes that it is "certain" this duodecimal division of the night followed the adoption of the Egyptian civil calendar, usually placed on the basis of analyses of the Sothic cycle, but a lunar calendar presumably long predated this and also would have had twelve months in each of its years. The coffin diagrams show that the Egyptians took note of the heliacal risings of 36 stars or constellations (now known as "decans"), one for each of the ten-day "weeks" of their civil calendar. (12 sets of alternate "triangle decans" were used for the 5 epagomenal days between years.) Each night, the rising of eleven of these decans were noted, separating the night into twelve divisions whose middle terms would have lasted about 40minutes each. (Another seven stars were noted by the Egyptians during the twilight and predawn periods, although they were not important for the hour divisions.) The original decans used by the Egyptians would have fallen noticeably out of their proper places over a span of several centuries. By the time of (), the priests at Karnak were using water clocks to determine the hours. These were filled to the brim at sunset and the hour determined by comparing the water level against one of its twelve gauges, one for each month of the year. During the New Kingdom, another system of decans was used, made up of 24 stars over the course of the year and 12 within any one night.

Output:
1