Definition: 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.
Input: Question: Was Trudeau a member of the democratic socailist Cooperative Commonwealth Federation when the Quebec separatists threw rocks and bottles at him? Passage 1: 21 heads north from the Newark Airport Interchange with U.S. Route 1/9 and U.S. Route 22 in Newark near the Newark Liberty International Airport on the six-lane, divided McCarter Highway. This portion of Route 21 serves to connect Newark Liberty with downtown Newark. The route interchanges with Interstate 78 and then crosses over Conrail Shared Assets Operations' Greenville Running Track, Lehigh Line, and Passaic and Harsimus Line and then Amtrak's Northeast Corridor rail line on a viaduct, coming to an interchange with Broad Street that provides access to Route 27. The route continues north, paralleling the elevated Northeast Corridor tracks that lead up to Newark Penn Station, which serves Amtrak and NJ Transit trains. At the Emmet Street intersection, Route 21 becomes a four-lane, undivided road and intersects Murray Street, which provides access to the Ironbound neighborhood of Newark. This section of Route 21 through the southern part of Newark has a high accident rate due to the heavy concentration of businesses and traffic lights along this portion of road. The road widens to six lanes and the route intersects County Route 510 (Market Street) near Newark Penn Station and continues north into downtown Newark, splitting from the Northeast Corridor rail line. It crosses Raymond Boulevard and the route meets County Route 508 (Center Street), with which it forms a concurrency.
 Passage 2:Many young people in Canada at this time, especially young women, were influenced by the 1960s counterculture and identified with Trudeau, an energetic nonconformist who was relatively young. They were dazzled by his "charm and good looks", and a large fan base was established throughout the country. He would often be stopped in the streets for his autograph or for photographs. Trudeau had once sympathized with Marxists and had spent time in the democratic socialist Cooperative Commonwealth Federation, and many of his fans were attracted to his culturally liberal stances (he legalized homosexuality and created more flexible divorce laws as Justice Minister under Lester B. Pearson). Trudeau was also admired for his laid-back attitude and his celebrity relationships; in that word's prevailing use at the time, describing a modern, "hip and happening person", he was often described as a swinger. A high point happened during Trudeau's election campaign in 1968 during the annual Saint-Jean-Baptiste Day parade in Montreal, when rioting Quebec separatists threw rocks and bottles at the grandstand where Trudeau was seated. Rejecting the pleas of his aides that he take cover, Trudeau stayed in his seat, facing the rioters, without any sign of fear. The image of the politician showing such courage impressed the Canadian people, and he handily won the election the next day.
 Passage 3:Kork fought in World War I on the Northwestern Front and the Western Front. In October 1914, he was awarded the Order of Saint Anna 3rd class with Swords. On 1 April 1915, he was awarded the Order of Saint Stanislaus 2nd class with Swords. Kork became an adjutant on the staff of the 3rd Siberian Army Corps and was promoted to Staff captain on 14 June. On 16 November, Kork received the Order of Saint Anna 4th class. At the same time he became an adjutant at the headquarters of the 8th Siberian Rifle Division. On 25 or 30 December he was transferred to the 10th Army headquarters. He also served with the 20th Army Corps and the Office of the Quartermaster General on the Staff of the Western Front. On 15 August 1916, he was promoted to Captain. In 1917, he graduated from the Observer-Pilot Military School. On 25 February, Kork became officer for Aircraft Orders on the Staff of the Western Front. He was promoted to lieutenant colonel. On 31 March, Kork was awarded the Order of Saint Anna 2nd class with Swords. Between August 1917 and February 1918 he was chairman of the Soldiers' Committee of the Western Front.

Output:
2