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: How many Korean diaspora are there in the Philippines? Passage 1:Martha Jones is a fictional character played by Freema Agyeman in the long-running British science fiction television series Doctor Who and its spin-off series, Torchwood. She is a companion of the Tenth Doctor in Doctor Who, after Rose Tyler (Billie Piper). According to the character's creator and executive producer Russell T Davies in his non-fiction book , the character was developed from the beginning with the intention of appearing for a whole of the 2007 series, and to later make guest appearances in subsequent series and crossover appearances in the show's two spin-offs; Martha subsequently made guest appearances in Torchwood series two and in Doctor Who series four in 2008 and special episode The End of Time in 2010. Martha was also intended to make guest appearances in the 2009 series of Torchwood and The Sarah Jane Adventures, but could not due to the actress's other work commitments.
 Passage 2:Koreans in Vietnam is a community of Vietnam with a population of Korean expatriates along with Vietnamese citizens of Korean ancestry. The population initially came in a military capacity, fighting on both sides of the Vietnam War. After the end of the war, there was little Korean migration or tourism in Vietnam, until the rise of the South Korean economy and the decline of the North resulted in an influx of South Korean investors and North Korean defectors, as well as South Korean men seeking Vietnamese wives. As of 2011, according to statistics of South Korea's Ministry of Foreign Affairs and Trade, they numbered roughly eighty thousand people, making them the second-largest Korean diaspora community in Southeast Asia, after the Korean community in the Philippines, and the tenth-largest in the world. A more recent estimate from Vietnam Television says their population might be as large as 130,000.
 Passage 3:Gallacher was born in Bridge of Weir and started his footballing career Linwood St Conval and Bridge of Weir before moving to Sunderland. He made his debut for Sunderland on 21 September 1929 against Arsenal in a 1–0 loss at Roker Park. He was part of the 1937 FA Cup Final winning side against Preston North End. In his career at Sunderland, Gallacher made 309 appearances and scored 108 goals in all competitions. He helped the "Black Cats" to win the First Division in 1935–36, scoring 20 goals in that title winning season. He then moved on to Stoke City in December 1938 just before the World War II. He only managed to play four matches for Stoke due to injury and left at the end of the 1938–39. He then played in Ireland for Coleraine and Cork United before signing for Cheltenham Town in September 1948 playing 8 games before leaving.

Output:
2