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: Does the Vancouver stadium where McCartney played in 2012 hold more than 50,000 people? Passage 1:Romik Khachatryan began to get involved in football at age 7. Khachatryan began his youth career in SKA-Arai Echmiadzin. The then 16-year-old player played for the club for 11 games and was able to score 2 goals in the 1994 season. The club performed poorly that season, taking 14th place in the Armenian Premier League and was sent to the Armenian First League. Khachatryan joined Kilikia Yerevan. The club, who were soon merged with Pyunik Yerevan, played in season informal and formal, respectively. Following 1996, he joined BKMA Yerevan and stayed at the club for a long time. His first season for the club was initially not good. They had 7 defeats at the start of the Premier League. In the first round, the team finished with one win and 10 losses. Moreover, after the first match of the second round, the club withdrew from the championship and disbanded. Khachatryan himself played only three games and returned to Pyunik. From this period, Khachatryan went to take his career elsewhere. Successful performance for the club provided the opportunity to play in the Armenia national team. At the end of the 1998 Armenian Premier League, he made a transition into Araks Ararat. His skills developed in the new club and he was allowed half of the season to move to the Cypriot First Division. He played for Cypriot clubs Olympiakos Nicosia, APOEL Nicosia and Anorthosis Famagusta. He also returned to Armenia to play for Banants Yerevan, which made it to the finals of the 2008 Armenian Cup. Khachatryan currently plays for Lokomotiv Tashkent.
 Passage 2:On 15 February 2016, McCartney announced two initial festival dates in Europe for the upcoming summer. These two headlining performances at Pinkpop Festival in Landgraaf, Netherlands and Rock Werchter in Werchter, Belgium were revealed before the initial revelation of the "One on One" tour. These tours would feature mostly similar elements of the "One on One" performances yet with a condensed set list to allot for festival curfew limits and less stage elements given restrictions. In the wake of the passing of notable Beatles and McCartney producer George Martin, McCartney announced the initial "One on One" dates for North America and Europe. In North America, McCartney's visit to Fresno, California would mark his first performance in the city, and his performances in North Little Rock and Sioux Falls would be his first performances in the states of Arkansas and South Dakota respectively. Elsewhere in North America, McCartney would perform in Portland after an eleven-year absence following his 2005 'US' tour. The two shows in Vancouver would follow his previous performance in the city at the BC Place stadium in 2012, yet this tour would feature two shows in the neighboring Rogers Arena after the pyrotechnics during his concert at BC Place accidentally damaged the stadium's new roof. McCartney's Seattle show would mark his shortest absence from any North American city on the tour announced currently, as he performed at the city's Safeco Field during the inaugural year of the 'Out There' tour. McCartney announced a performance on 16 March in Minneapolis at the Target Center. This show would take place on 4 May 2016, less than two years after McCartney's last performance in the city at the adjacent baseball stadium sharing a corporate sponsor with the arena, Target Field. Due to high demand of tickets a second show in Minneapolis was announced the next day and would take place on 5 May.
 Passage 3:In 1986, Mitsubishi Electric researchers Yoichi Akasaka and Tadashi Nishimura laid out the basic concepts and proposed technologies for 3D ICs. The following year, a Mitsubishi research team including Nishimura, Akasaka and Osaka University graduate Yasuo Inoue fabricated an image signal processor (ISP) on a 3D IC, with an array of photosensors, CMOS A-to-D converters, arithmetic logic units (ALU) and shift registers arranged in a three-layer structure. In 1989, an NEC research team led by Yoshihiro Hayashi fabricated a 3D IC with a four-layer structure using laser beam crystallisation. In 1990, a Matsushita research team including K. Yamazaki, Y. Itoh and A. Wada fabricated a parallel image signal processor on a four-layer 3D IC, with SOI (silicon-on-insulator) layers formed by laser recrystallization, and the four layers consisting of an optical sensor, level detector, memory and ALU.

Output:
2