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.
Input: Question: How long had the Royal Opera Covent Garden been in operation when Sarah Fox made her debut as Woglinde? Passage 1:The Battle of Chongju (29–30 October 1950) took place during the United Nations Command (UN) offensive towards the Yalu River, which followed the North Korean invasion of South Korea at the start of the Korean War. The battle was fought between Australian forces from 3rd Battalion, Royal Australian Regiment (3 RAR) and the 17th Tank Brigade of the Korean People's Army (KPA) for control of Chongju, North Korea and the surrounding area. After detecting a strong KPA armoured force equipped with T-34 tanks and SU-76 self-propelled guns on a thickly wooded ridgeline astride the line of advance, the Australians launched a series of company attacks with American M4 Sherman tanks and aircraft in support. Despite heavy resistance the KPA were forced to withdraw and the Australians captured their objectives after three hours of fighting.
 Passage 2:In 2000, Fox made her debut for the Glyndebourne Festival as Karolka (Jenufa), returning in 2002 as Zerlina (Don Giovanni) and in 2003 as Susanna (Le nozze di Figaro). Of her Susanna in Le Nozze di Figaro at the Glyndebourne Festival Barbarina Diana, writing in Il giornale della musica described her performance at Glyndebourne as "a delight for the eye and heart, whose voice, fresh and crystal clear is blessed with a rare beauty accompanied by a strong musicality: 'Deh vieni' interpreted without affectation, directed to her beloved, takes your breath away". With Glyndebourne on tour she has sung Marzelline (Fidelio) and Miss Wordsworth (Albert Herring). In 2004, she made her debut with the Royal Opera Covent Garden as Woglinde (Das Rheingold), returning to the house in 2005 as Waldvogel (Siegfried) and in 2006 as Woglinde (Götterdämmerung). In 2007 she sang Zerlina (Don Giovanni) and Woglinde (Das Rheingold and Götterdämmerung; in 2008, Lucy Lockitt in The Beggars Opera and in 2009, Asteria in Handel's "Tamerlano." Further British engagements include Ann Page (Sir John in Love) with English National Opera, Merab (Saul), Musetta and Mimi (La Bohème) with Opera North, and Servilia (La clemenza di Tito) with Welsh National Opera. At the Edinburgh Festival, her roles have included Iphis (Jephtha) and Cleofide (Poro).
 Passage 3:Jackson was a member of the council of IPPA, a forerunner of Pact, the body which established terms for trade between independent producers and the BBC and other broadcasters. PJP was eventually taken over by Noel Gay Television, a company chaired by the British entertainment executive, Bill Cotton. Jackson served as the Managing Director and the company produced Red Dwarf, the long-running and internationally successful comedy series, the pilot episode of Bottom (Rik Mayall and Adrian Edmonson) and, working with LWT, the hugely influential Channel Four variety show, Saturday Live. Saturday Live featured such comedy stars as Lenny Henry, Pamela Stephenson, Michael Barrymore, Peter Cook and Barry Humphries and brought to prominence talents such as Ben Elton (as a performer), Fry and Laurie, Harry Enfield and Julian Clary. The company also held the contract to provide all entertainment programming for the short lived UK satellite service, British Satellite Broadcasting and produced shows featuring then unknown names such as Armando Ianucci, Steve Coogan, Lee Evans and Jack Dee, as well as The Happening, a precursor to the long-running BBC show Later... with Jools Holland. In 1988 Jackson also co-produced the Oscar-winning short film, The Appointments of Dennis Jennings, starring Steven Wright and Rowan Atkinson.

Output:
2