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 people live in the city that Nu Boyana Film is located in? Passage 1:Evan Wells graduated from Stanford University in 1995 with a computer science degree. He worked at Sega in 1993, working on ToeJam & Earl in Panic on Funkotron (1993) as a lead tester, before working at Crystal Dynamics from 1994 to 1998, working on Gex (1998) as a programmer, and  (1998) as lead designer. Wells then moved to Naughty Dog, where he worked on  (1998), Crash Team Racing (1999),  (2001), Jak II (2003), Jak 3 (2004) and  (2005). Following the departure of founders Jason Rubin and Andy Gavin in 2004, Wells became co-president of Naughty Dog alongside Stephen White; White was replaced by Christophe Balestra after a year. Wells continued to work as co-president during the release of the Uncharted titles (2007–17), as well as The Last of Us (2013). Balestra retired from the company in April 2017; Wells remains the sole president. Neil Druckmann was promoted to Vice President in March 2018.
 Passage 2:Olvir Hnufa or Ölvir hnúfa was a Norwegian commander in a clan and poet of the late ninth and early tenth centuries, known from, among other sources, Egil's Saga, Skaldatal and the Prose Edda. Olvir was the son of the viking Berle-Kari and brother-in-law of Kveldulf Bjalfason, who married Olvir's sister Salbjorg Karadottir; he was thus uncle to Skallagrim and Thorolf Kveldulfsson and great uncle to the famous poet Egil Skallagrimsson. Olvir also had a brother named Eyvind Lambi. Olvir was a prominent member of the court of King Harald Fairhair, who united Norway under his rule in the late ninth or early tenth century. Among other famous poets, he served as one of King Harald's court poets. He also served as a warrior in Harald's retinue, and fought at the pivotal Battle of Hafrsfjord on the king's flagship. He is best known for his involvement in the conflict between Harald and Olvir's kinsman Thorolf Kveldulfsson, which ended with the latter's death. Only a few fragments of Olvir's poetry survive.
 Passage 3:Filmed in technicolor format, the music video for "Nobody's Perfect" was shot at Nu Boyana Film studios in Sofia, Bulgaria, on 24 March 2011 and was directed by Emil Nava. The music video premiered on 14 April 2011 in the United Kingdom through Jessie's Vevo channel. The music video is inspired by Lewis Carroll classic tale Alice's Adventures in Wonderland, Jessie J sits in a banquet table similar to the Mad Hatters' tea party. Jessie J is shown in a hall of doors that gives a resemblance to the curious hall in the first chapter of Alice in Wonderland. Jessie J also rolls in tar and appears dressed as the Roman goddess Libertas, who is better known as the robed female figure of the Statue of Liberty, what could be interpreted as Black-and-white dualism. After completing the filming sessions, Jessie J described the video as her favorite done so far.

Output:
3