Input: Read this: During the last century, decreases in biodiversity have been increasingly observed. In 2007, German Federal Environment Minister Sigmar Gabriel cited estimates that up to 30% of all species will be extinct by 2050. Of these, about one eighth of known plant species are threatened with extinction. Estimates reach as high as 140,000 species per year (based on Species-area theory). This figure indicates unsustainable ecological practices, because few species emerge each year.[citation needed] Almost all scientists acknowledge that the rate of species loss is greater now than at any time in human history, with extinctions occurring at rates hundreds of times higher than background extinction rates. As of 2012, some studies suggest that 25% of all mammal species could be extinct in 20 years.
Question: 2012 studies estimated what percentage of mammals could be extinct in 20 years?

Output: 25%


Input: Read this: Foot resigned and was replaced as leader by Neil Kinnock, with Roy Hattersley as his deputy. The new leadership progressively dropped unpopular policies. The miners strike of 1984–85 over coal mine closures, for which miners' leader Arthur Scargill was blamed, and the Wapping dispute led to clashes with the left of the party, and negative coverage in most of the press. Tabloid vilification of the so-called loony left continued to taint the parliamentary party by association from the activities of 'extra-parliamentary' militants in local government.
Question: Who was Foot replaced by?

Output: Neil Kinnock


Input: Read this: Education in Switzerland is very diverse because the constitution of Switzerland delegates the authority for the school system to the cantons. There are both public and private schools, including many private international schools. The minimum age for primary school is about six years in all cantons, but most cantons provide a free "children's school" starting at four or five years old. Primary school continues until grade four, five or six, depending on the school. Traditionally, the first foreign language in school was always one of the other national languages, although recently (2000) English was introduced first in a few cantons.
Question: When was English introduced as a first foreign language in many cantons?

Output: 2000


Input: Read this: Their first ever defeat on home soil to a foreign team was an 0–2 loss to the Republic of Ireland, on 21 September 1949 at Goodison Park. A 6–3 loss in 1953 to Hungary, was their second defeat by a foreign team at Wembley. In the return match in Budapest, Hungary won 7–1. This still stands as England's worst ever defeat. After the game, a bewildered Syd Owen said, "it was like playing men from outer space". In the 1954 FIFA World Cup, England reached the quarter-finals for the first time, and lost 4–2 to reigning champions Uruguay.
Question: In what year was Goodison Park built?

Output:
unanswerable