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 many total NHL playoff games did USA air during the 1981 Stanley Cup Playoffs? Passage 1:With USA's coverage of the 1981 Stanley Cup Playoffs, it marked the first time that there was "blanket" American television coverage of the NHL playoffs. In other words, more often than not that, whenever a game was played it was televised on a national outlet (whether it was broadcast or cable). USA however, didn't televise Game 1 of the playoff series between Philadelphia Flyers and Calgary Flames (April 16) because they were instead broadcasting a baseball game between the Pittsburgh Pirates and Philadelphia Phillies. Meanwhile, they also skipped Games 26 (on April 17, 22 and 24) of the PhiladelphiaCalgary series because of their coverage of the NBA playoffs. USA also didn't televise Games 2 and 5 of the playoff series between the Calgary Flames and Minnesota North Stars (April 30 and May 7 respectively) because of baseball games involving the Minnesota Twins vs. the Boston Red Sox and the Los Angeles Dodgers vs. the Philadelphia Phillies respectively.
Passage 2:In 1760 the French zoologist Mathurin Jacques Brisson included a description of the hook-billed vanga in his Ornithologie based on a specimen collected on the island of Madagascar. He used the French name L'ecorcheur de Madagascar and the Latin Collurio Madagascariensis. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the hook-billed vanga. Linnaeus included a brief description, coined the binomial name Lanius curvirostris and cited Brisson's work. It is now the only species placed in the genus Vanga that was introduced by the French ornithologist Louis Jean Pierre Vieillot in 1816. The specific name curvirostris is from Latin curvus "curved" and -rostrum "billed". The word "vanga" is the Malagasy name for the species. Two subspecies are recognised.
Passage 3:In October 1991, Price left the group to perform solo production work, eventually forming his own label, Sun Text. The remaining members released a fourth album called Gorgeous, and after that, did some remix work for David Bowie, Soundgarden, and other performers, before returning with the album entitled Don Solaris in 1996. It featured contributions from James Dean Bradfield, who sung vocals on "Lopez", which reached number 20 in the UK Singles Chart. This song was remixed by Brian Eno. In 1997, they had remixed the Mansun track "Skin Up, Pin Up" for the Spawn soundtrack. The song "Bond" featured vocals by Mike Doughty from the band Soul Coughing and "Azura" featured Lou Rhodes from Lamb. They released a greatest hits compilation album, in 1998. In 2000, Newbuild was re-released.

Output:
1