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: Where is the letter that Sidonius Apollinaris sent to Riothamus currently being held? Passage 1:About 460, Roman diplomat and bishop Sidonius Apollinaris sent a letter to Riothamus asking his help to quell unrest among the Brettones, British colonists living in Armorica; this letter still survives. In the year 470, Western Emperor Anthemius began a campaign against Euric, king of the Visigoths who were campaigning outside their territory in Gaul. Anthemius requested help from Riothamus, and Jordanes writes that he crossed the ocean into Gaul with 12,000 soldiers. The location of Riothamus' army was betrayed to the Visigoths by Arvandus, the jealous praetorian prefect of Gaul, and Euric defeated him in the Battle of Déols after Riothamus army was driven from Avaricum (Bourges) where he had been welcomed by the Bituriges before the fight. Riothamus was last seen retreating northward to Burgundy when Euric besieged Arvernum (Clermont-Ferrand) just south of the Bituriges territory.
 Passage 2:She has been nominated multiple times in the Best Actress category at the annual Star Awards. She was nominated for the "Best Actress" award in 1995, 1996, 1997, 2001, 2002 and 2003; she won the award once in 2001 for her role in Three Women and a Half, playing a manager in an advertising company who would make use of her looks and charms to climb up the corporate ladder. Tan took a break from television in 2005. In 2006, she appeared in two Singapore dramas, Women of Times and Measure of Man, the latter drama clinching the runner-up position in 2006's television viewership ratings. Tan also ventured into English dramas. In 2000, she played Mae in MediaCorp Channel 5's longest-running drama series, Growing Up. Later in 2009, she played Suzanne Kong, the wife of a tycoon in the 40-episode drama Red Thread. In 2013, Tan won the "Best Actress in a Supporting Role" award at the 18th Asian Television Awards (ATA) for her role in The Day It Rained On Our Parade which consisted only four episodes. On 29 May 2015, it was announced that Tan will play the lead role in Jack Neo's film, Long Long Time Ago alongside Mark Lee and Wang Lei. At Star Awards 2017, Tan received the Best Supporting Actress for the drama Hero (2016 TV series) , she announced in a speech that this would be the last time, she would go on stage to receive this award. In Star Awards 2018 , she landed her 4th nomination for Best Supporting Actress for the drama, Have a Little Faith.
 Passage 3:CNN claims that Shubert was one of the first CNN correspondents to report on the 2004 Indian Ocean earthquake and resulting tsunami, reporting from Aceh, Indonesia, where she was vacationing at the time. Also in Indonesia, Shubert covered a number of major new events that included the 2002 Bali bombings, the fall of Indonesian President Abdurrahman Wahid and the inauguration of President Megawati Sukarnoputri, East Timor's transition to independence, the resurgence of the Free Aceh separatist movement, the religious conflict in Ambon City and the fall of former Indonesian President Suharto and resulting reform movement. Shubert also briefly covered the Schapelle Corby verdict in Bali; however, due to the time consuming and overall expensive nature of this landmark court case, CNN eventually opted to run stock footage obtained from its Australian network affiliates instead of direct reporting. Shubert has also contributed reports from the Philippines and Singapore.

Output:
1