This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.
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Question: Passage: From 1623 to 1624 the Dutch had been at war over the Pescadores, and in 1633 clashed with a fleet led by Zheng Zhilong in the Battle of Liaoluo Bay, ending in another Dutch defeat. By 1632 the Dutch had established a post on a peninsula named Tayoan , which was separated from the main part of Formosa by a shallow lagoon historically referred to as the Taikang inland sea . The Dutch fortifications consisted of two forts along the bay: the first and main fortification was the multiple-walled Fort Zeelandia, situated at the entrance to the bay, while the second was the smaller Fort Provintia, a walled administrative office. Frederick Coyett, the governor of Taiwan for the Dutch East India Company, was stationed in Fort Zeelandia with 1,800 men, while his subordinate, Valentyn, was in charge of Fort Provintia and its garrison of 500 men. In 1659, after an unsuccessful attempt to capture Nanjing, Koxinga, son of Zheng Zhilong and leader of the Ming loyalist remnants, felt that the Qing Empire had consolidated their position in China sufficiently, while his troops needed more supplies and manpower. He began searching for a suitable location as his base of operations, and soon a Chinese man named He Bin , who was working for the Dutch East India Company in Formosa , fled to Koxinga's base in Xiamen and provided him with a map of Taiwan.
Question: Which forts belonged to the Dutch?

Answer: span


Question: Passage: Composers using electric bass include Christian Wolff (composer) (Electric Spring 1, 1966; Electric Spring 2, 1966/70; Electric Spring 3, 1967; and Untitled, 1996); Francis Thorne (Liebesrock 1968-69); Krzysztof Penderecki (Cello Concerto no. 1, 1966/67, rev. 1971/72; Capriccio for Violin and Orchestra (Penderecki), 1967); The Devils of Loudun (opera), 1969; Kosmogonia, 1970; and Partita (Penderecki), 1971); Louis Andriessen (Spektakel, 1970; De Staat, 1972-1976; Hoketus, 1976; De Tijd, 1980-81; and De Materie, 1984-1988); Pelle Gudmundsen-Holmgreen (Symfoni på Rygmarven, 1966; Rerepriser, 1967; and Piece by Piece, 1968); and Irwin Bazelon (Churchill Downs, 1970).
Question: Who was a composer first using an electric bass first: Thorne or Tijd?

Answer: span


Question: Passage: Rutger Macklean (1742-1816) was a prominent captain, politician and land owner remembered for introducing agricultural reforms leading to more effective large-scale farming in Sweden. Ernst Wigforss (1881-1977) was Minister for Finance (Sweden) 1925-1926 and 1932-1949 and has been considered the foremost developer of the Swedish Social democracy. Östen Undén (1886-1974) was an internationally recognized professor of law and Minister for Foreign Affairs (Sweden) 1924-1926 and 1945-1962. Tage Erlander (1901-1985) was Swedens Prime Minister of Sweden 1945-1969, potentially a record of uninterrupted tenure in parliamentary democracies, and led his party through eleven elections. Ruth Bader Ginsburg (1933-) is a Associate Justice of the Supreme Court of the United States of the United States, the second female justice to be in this position. Ingvar Carlsson (1934-) served as Swedens prime minister 1986-1991 and 1994-1996 and as Swedens deputy prime minister 1982-1986. Rupiah Banda (1937-) was the president of Zambia 2008-2011 and its vice president 2006-2008. Leif Silbersky (1938-) is a notable lawyer and author famous for representing so called high-profile cases in Sweden. Marianne Lundius (1949-) is since 2010 the president of the Supreme Court of Sweden, the first female justice in this position. Utoni Nujoma (1952-) was Namibia minister of foreign affairs 2010-2012 and is since 2012 the countrys minister of justice.
Question: Which year started a period in which Ernst Wigforss was Minister for Finance in Sweden for only 1 year?

Answer:
date