Detailed Instructions: This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.
Problem:Passage: On 17 January 2011, it was announced that Motorhead would be part of the Sonisphere Festival in Knebworth. In August 2011, they headlined the Brutal Assault open-air festival in the Czech Republic. On 2 March 2011 Motorhead performed on Late Night with Jimmy Fallon. On 9 July 2011, former guitarist Wurzel died of a heart attack. In celebration of 35 years touring, in late 2011 the band released the live DVD The World Is Ours - Vol 1 - Everywhere Further Than Everyplace Else, including performances at the O2 Apollo Manchester, Best Buy Theater, New York City and Teatro Caupolican, Santiago de Chile. On 19 December 2011, it was announced that Motorhead would play at the German festivals Rock am Ring and Rock im Park in Nurburgring and Nuremberg respectively in June 2012. On 12 January 2012, it was announced that Motorhead were touring the US and Canada in early 2012, along with three other metal bands Megadeth, Volbeat and Lacuna Coil. The Gigantour took place from 26 January to 28 February 2012, but Motorhead missed the final four shows because Lemmy had a combination of an upper respiratory viral infection and voice strain, resulting in severe laryngitis. Lemmy wrote on Facebook, "Im giving my voice a good rest", hoping he would recover soon to play at the Mayhem Festival, which was held from 30 June to 5 August 2012. Motorhead also took part on 23 June in the Rock-A-Field Luxembourg Open Air Festival in Roeser.
Solution:
How many days did the Gigantour take place?