Detailed Instructions: 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.
Problem:Question: In what year was the structure built that Venkateshwarlu wrote the first research book on? Passage 1:Venkateshwarlu paints and sings. He worked as Reporter in Eenadu Telugu news daily from 1989 to 1995, later he worked as Script Writer in State Institute of Education Technology (SIET), Doordarshan (a UNESCO aided Educational Project). He did research on Telugu Cinema and has written the books Telugu Cinema Charitra (1997), and Telugu Cinema Vythalikulu (2002), published and released with his own Nextstep Publications & Entertainments. For these two books he received the Nandi Awards from government of Andhra Pradesh. He also written a research book on the history of Chilkur temples, Chilikuru Kshetra Charitra in 2004. This is the first research book on Chilkur Balaji Temple or Chilukuru Balaji Temple. In 2005 Venkateshwarlu directed Trivarnam – Every Indian Heartbeat, a patriotic video album in Telugu. This was the first patriotic video album in Telugu. He worked as a Creative Director and Film Analyst in Pyramid Saimira Theatre Limited from 2006 to 2009. At this time Venkateshwarlu don lot of film promotion works for Pyramid Saimira Theatre Limited for leading films inclusive of Sivaji, Shankar Dada Zindabad, Saroja, Naan Kadavul, Mozhi, Avva, Yamadonga, Pokkiri, Azhagiya Tamil Magan, Villu, Kachche Dhaage etc. In 2009, Venkateshwarlu directed Maisigandi Kshetra Charitra – Mythological Documentary film on the Maisigandi Temple's history in Telugu. Farmer Chief Minister of Andhra Pradesh, Dr Y. S. Rajasekhara Reddy was released this documentary film on 21 July 2009. He was worked as Director for The Federation of Andhra Pradesh Chambers of Commerce and Industry(FAPCCI).
 Passage 2:Koryo-saram is the name which ethnic Koreans in the Post-Soviet states use to refer to themselves. Approximately 500,000 ethnic Koreans reside in the former USSR, primarily in the newly independent states of Central Asia. There are also large Korean communities in southern Russia (around Volgograd), the Caucasus, and southern Ukraine. These communities can be traced back to the Koreans who were living in the Russian Far East during the late 19th century. There is also a separate ethnic Korean community on the island of Sakhalin, typically referred to as Sakhalin Koreans. Some may identify as Koryo-saram, but many do not. Unlike the communities on the Russian mainland, which consist mostly of immigrants from the late 19th and early 20th centuries, the ancestors of the Sakhalin Koreans came as immigrants from Gyeongsang and Jeolla provinces in the late 1930s and early 1940s, forced into service by the Japanese government to work in coal mines in order to fill labour shortages caused by World War II.
 Passage 3:After he received his degree in 2010, Bowen joined Coach Randy Edsall’s staff as a graduate assistant. During his two seasons as a G.A. at Maryland, he worked with the offensive linemen and the wide receivers. In his final season at Maryland, he coached for Mike Locksley, the Terps’ Offensive Coordinator. Bowen spent the 2013 season as the tight ends coach at Towson University where the Tigers advanced to the FCS Championship Game and finished No. 2 in the country. In 2014, Bowen spent the season as an offensive graduate assistant for the Nittany Lions, he assisted primarily with the offensive line. In 2015, he served as Joe Moorhead's offensive line coach at Fordham, and then as Andrew Breiner's offensive coordinator the following season. In 2017, Bowen joined Maryland and head football coach D. J. Durkin as their offensive line coach. After spending just one season at Maryland, Bowen rejoined Penn State and Coach Franklin as the Nittany Lions tight end coach for the 2018 season. 

Solution:
1