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: In which country did Sylvius first studied medicine? Passage 1:Roth hired 19-year-old guitar virtuoso Jason Becker to replace Vai prior to recording his third solo LP, A Little Ain't Enough. A straight-ahead hard rock album produced by Bob Rock (who had just produced Metallica's self-titled album), A Little Ain't Enough achieved RIAA gold status shortly after its January 1991 release. Before starting a support tour for A Little Ain't Enough, Becker was diagnosed with Lou Gehrig's disease, rendering him unable to perform onstage. Guitarist Joe Holmes stood in for Becker during the tour. Later in 1991, Nirvana and grunge rock emerged, altering musical tastes and suddenly making Roth's brand of hard rock seem unfashionable. Roth's band fractured shortly following the tour's completion. With one exception – 1997's well-received DLR Band album, featuring guitarist John 5 and drummer Ray Luzier – until his reconciliation with Van Halen in 2006, Roth would utilize hired-hands and studio musicians on his club and amphitheater solo tours.
 Passage 2:Sylvius, a latinization of "de le Boë" translated as "of the woods", was born in Hanau, Germany to an affluent family originally from Cambrai, but worked and died in the Netherlands. He studied medicine at the Protestant Academy of Sedan, and from 1632–1634 in Leiden under Adolph Vorstius and Otto Heurnius. In 1634 he held a disputation Positiones variae medicae under the presidency of Vorstius, in which he defended the proposition that there should be a pulmonary circulation. After that Sylvius made a study tour to Jena and Wittenberg, and on 16 March 1637 he defended a thesis entitled De animali motu ejusque laesionibus at the University of Basel under the presidency of Emmanuel Stupanus. After practicing medicine in his hometown Hanau he returned to Leiden in 1639 to lecture. In this period he became famous for his demonstrations on circulation. From 1641 on he had a lucrative medical practice in Amsterdam. While in Amsterdam he met Glauber, who introduced him to chemistry. In 1658 he was appointed the professor of medicine at the University of Leiden and was paid 1800 guilders which was twice the usual salary. He was the University's Vice-Chancellor in 1669-70.
 Passage 3:Chafee was the only Republican in the Senate to vote against authorization of the use of force in Iraq in the lead-up to the Iraq War. He was defeated in his 2006 reelection bid by Democrat Sheldon Whitehouse. Chafee subsequently shifted his affiliation towards the Democratic Party by first endorsing Barack Obama in the 2008 presidential election, running as an independent for Governor of Rhode Island in 2010, serving as the co-chair of Obama's 2012 re-election campaign, and then finally officially switching his registration to the Democratic Party in May 2013. In 2015, he sought nomination to be the Democratic Party candidate in the 2016 presidential election, but withdrew prior to the primaries and later endorsed Hillary Clinton. In 2019, Chafee expressed interest in running in the Libertarian primary for President in the 2020 election.

Output:
2