This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

[EX Q]: Passage: Traditionally a sea-power, Portugal has had a strong tradition in the Portuguese fishing sector and is one of the countries with the highest fish consumption per capita. The main landing sites in Portugal (including Azores and Madeira), according to total landings in weight by year, are the harbours of Matosinhos, Peniche, Olhao, Sesimbra, Figueira da Foz, Sines, Portimao and Madeira. Portuguese processed fish products are exported through several companies, under a number of different brands and registered trademarks, such as Ramirez (the world's oldest active canned fish producer), Bom Petisco, Nero, Combate, Comur, General, Lider, Manna, Murtosa, Pescador, Piteu, Tenorio, Torreira and Vasco da Gama.[citation needed] Question: Which company is the world's oldest canned fish producer?
[EX A]: Ramirez

[EX Q]: Passage: The root schism was between the Sthaviras and the Mahasanghikas. The fortunate survival of accounts from both sides of the dispute reveals disparate traditions. The Sthavira group offers two quite distinct reasons for the schism. The Dipavamsa of the Theravada says that the losing party in the Second Council dispute broke away in protest and formed the Mahasanghika. This contradicts the Mahasanghikas' own vinaya, which shows them as on the same, winning side. The Mahasanghikas argued that the Sthaviras were trying to expand the vinaya and may also have challenged what they perceived were excessive claims or inhumanly high criteria for arhatship. Both parties, therefore, appealed to tradition. Question: The Mahasanghikas argued that the Sthaviras were trying to expand what?
[EX A]: the vinaya

[EX Q]: Passage: Barbershop music is one of several uniquely American art forms. The earliest reports of this style of a cappella music involved African Americans. The earliest documented quartets all began in barbershops. In 1938, the first formal men's barbershop organization was formed, known as the Society for the Preservation and Encouragement of Barber Shop Quartet Singing in America (S.P.E.B.S.Q.S.A), and in 2004 rebranded itself and officially changed its public name to the Barbershop Harmony Society (BHS). Today the BHS has over 22,000 members in approximately 800 chapters across the United States, and the barbershop style has spread around the world with organizations in many other countries. The Barbershop Harmony Society provides a highly organized competition structure for a cappella quartets and choruses singing in the barbershop style. Question: What type of a cappella music is specific to American culture?
[EX A]:
Barbershop music