TASK DEFINITION: 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.
PROBLEM: Passage: In Japan, the Mayor of Nagano, Shoichi Washizawa said that it has become a "great nuisance" for the city to host the torch relay prior to the Nagano leg. Washizawa's aides said the mayor's remark was not criticism about the relay itself but about the potential disruptions and confusion surrounding it. A city employee of the Nagano City Office ridiculed the protests in Europe, he said "They are doing something foolish", in a televised interview. Nagano City officially apologized later and explained what he had wanted to say was "Such violent protests were not easy to accept". Also citing concerns about protests as well as the recent violence in Tibet, a major Buddhist temple in Nagano cancelled its plans to host the opening stage of the Olympic torch relay, this temple was vandalised by an un-identified person the day after in apparent revenge, Question: Who was the mayor of Nagano?

SOLUTION: Shoichi Washizawa

PROBLEM: Passage: A series of experiments performed from the late 1800s to the early 1900s revealed that diabetes is caused by the absence of a substance normally produced by the pancreas. In 1869, Oskar Minkowski and Joseph von Mering found that diabetes could be induced in dogs by surgical removal of the pancreas. In 1921, Canadian professor Frederick Banting and his student Charles Best repeated this study, and found that injections of pancreatic extract reversed the symptoms produced by pancreas removal. Soon, the extract was demonstrated to work in people, but development of insulin therapy as a routine medical procedure was delayed by difficulties in producing the material in sufficient quantity and with reproducible purity. The researchers sought assistance from industrial collaborators at Eli Lilly and Co. based on the company's experience with large scale purification of biological materials. Chemist George Walden of Eli Lilly and Company found that careful adjustment of the pH of the extract allowed a relatively pure grade of insulin to be produced. Under pressure from Toronto University and a potential patent challenge by academic scientists who had independently developed a similar purification method, an agreement was reached for non-exclusive production of insulin by multiple companies. Prior to the discovery and widespread availability of insulin therapy the life expectancy of diabetics was only a few months. Question: Who discovered that pancreatic extract reversed symptoms of pancreas removal?

SOLUTION: Frederick Banting and his student Charles Best

PROBLEM: Passage: At the beginning of the 19th century the Ottoman Empire included all of the Balkan Peninsula north to the southern edge of the Hungarian Plain, but by 1914 had lost all of it except Constantinople and Eastern Thrace to the rise of Balkan nationalism, which saw the independence of Greece, Serbia, the Danubian Principalities and Bulgaria. Up until 1912 the Ottomans retained a band of territory including Albania, Macedonia and Thrace, which were lost in the two Balkan Wars of 191213. Question: When did the Ottomans lose the territory of Albania, Macedonia and Thrace?

SOLUTION:
the two Balkan Wars of 191213