Here is a question about this article: Music fans have turned to Change.org around the globe to try and block West's participation at various events. The largest unsuccessful petition has been to the Glastonbury Festival 2015 with 133,000+ voters stating they would prefer a rock band to headline. On July 20, 2015, within five days of West's announcement as the headlining artist of the closing ceremonies of the 2015 Pan American Games, Change.org user XYZ collected over 50,000 signatures for West's removal as headliner citing the headlining artist should be Canadian. In his Pan American Games Closing Ceremony performance, close to the end of his performance, West closed the show by tossing his faulty microphone in the air and walked off stage.
What is the answer to this question: For what event was the largest amount of signatures collected in an attempt to keep Kanye from performing at it?
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So... Glastonbury Festival 2015


Here is a question about this article: In 1999, Estonia experienced its worst year economically since it regained independence in 1991, largely because of the impact of the 1998 Russian financial crisis.[citation needed] Estonia joined the WTO in November 1999. With assistance from the European Union, the World Bank and the Nordic Investment Bank, Estonia completed most of its preparations for European Union membership by the end of 2002 and now has one of the strongest economies of the new member states of the European Union.[citation needed] Estonia joined the OECD in 2010.
What is the answer to this question: What event played a major part in the decline of the economy during 1999?
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So... the 1998 Russian financial crisis


Here is a question about this article: Portugal is a significant European minerals producer and is ranked among Europe's leading copper producers. The nation is also a notable producer of tin, tungsten and uranium. However, the country lacks the potential to conduct hydrocarbon exploration and aluminium, a limitation that has hindered the development of Portugal's mining and metallurgy sectors. Although the country has vast iron and coal reserves—mainly in the north—after the 1974 revolution and the consequent economic globalization, low competitiveness forced a decrease in the extraction activity for these minerals. The Panasqueira and Neves-Corvo mines are among the most recognised Portuguese mines that are still in operation.[citation needed]
What is the answer to this question: What type of exploration does Portugal lack the potential for?
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So...
hydrocarbon