In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Input: Consider Input: Article: Some people say that the best way to reduce the size of your waist is to do stomach exercise. Many people believe that when specific muscles are exercised, the fatty tissues in the immediate area are burned up. The truth is that exercise burns fat from all over the body and not from one specific area. Of course, if you reduce the fat throughout your body, you will certainly see results around your waist too. Some people believe that you need to exercise twice a week in order to keep a sufficient level of physical fitness. However, studies directed by American scientists show that unexercised muscles lose their strength very quickly. Within 48 to 72 hours, you must use the muscles again to reestablish the good physical effects. And what does that mean to you? American scientists concluded that while daily exercise is most helpful, exercising every other day or three days a week will keep a sufficient level of physical fitness. Is it true that you burn more calories running one mile than walking the same distance? The answer is no. The truth is that you use the same amount of energy whether you walk or run the mile, since in both cases you are moving the same weight the same distance. The speed does not matter. Of course, if you run rather than walk for 30 minutes, you will cover more distance, and therefore burn more calories. If your breathing doesn't return to normal within 5 minutes after you finish exercising, you have exercised too much. Five minutes or so after exercising, your breathing should be normal, your heart shouldn't be beating loudly, and you shouldn't be tired.
Answer: run fast for 30 minutes

Output: If you want to reduce the fat around your waist, you should _ .

Input: Consider Input: Article: His first fight was for the equal rights of black people in South Africa. Then, as the first black president he fought to unite the country and organize the government. Now Nelson Mandela has set his sights on a new enemy, AIDS. On March 19 the 82-year-old, former president, hosted his second AIDS-awareness concert. He warned that 25 million people in Africa were already infected with the fatal disease. Mandela was born in a small village in South Africa in 1918. He was adopted by the chief of his tribe and could have been a chief himself and lived a happy country life. But he refused to be a chief when his people lived under racial discrimination ( ). He decided to fight for equal rights for all the people in South Africa. Before 1990, under the country's Racial Segregation Law , colored and white people lived separately. Black people were treated unfairly even when taking a bus. Blacks had to stand at the back of the bus to make room for white people even when there were only a few of them on board. For his opposition to the system Mandela was arrested and spent 27 years in prison. He was freed in 1990 and become the president of the country after the first elections were held in which everyone could vote. Mandela was not only a political fighter who attacked with speeches. He was also a trained boxer and fought in the ring when he was young. " Although I did not enjoy the violence of boxing, I was interested in how one moved one's body to protect oneself, how one used a strategy both to attack and retreat ," he wrote in his autobiography. As a skilful fighter, he chose music as his weapon against AIDS. He hopes to win another victory against AIDS.
Answer: controlling the spread of AIDS

Output: Nelson Mandela succeeded in doing the following except _ .

Input: Consider Input: Article: The Elysee Palace in France enjoys equal popularity in the world with the Buckingham Palace in the United Kingdom, the Kremlin in Russia as well as the White House in the U. S. It is the residence of the president of the French Republic and the symbol of the supreme authority in France. The Elysee palace, with an area of 11,000 square metres, is at the eastern end of the Champs Elysee in the city of Paris proper and backed by a large and peaceful garden of more than twenty thousand square metres. Its main building, quite handsome and graceful, is a two-story classical stone architecture of European style, and beside it are two side buildings facing each other and with an extensive rectangular courtyard in the middle. There are altogether 369 halls and rooms of different sizes. The Elysee Palace, built in 1718, has a ling history of close to300 years to date. This house was at first a private residence of a count named d'Evreau, so it was called Hotel d'Evreau. It had later gone through many changes and its owners had been changed for many times, but all the residents in it were distinguished persons and high officials. The house was renamed Bonaparte Mansion when it was owned by Louis X V and Louis X VI successively when they acted as emperors. Napoleon I signed his act of abdication here when he had suffered defeat in the Battle of Waterloo in 1815. Nopoleon III moved in the Mansion in 1848 when he was elected president, and the house became a Royal Palace when he declared himself as emperor. The Third French Republic issued a decree in 1873, appointing officially the Elysee Palace as the residence president of the French Republic. Over the hundred years since then, almost all the president of the French Republic worked and lived there. Starting from 1989, the Elysee Palace is open to the public every year in September on the French Castles Day.
Answer: 3
Output: The number of the buildings of the Elysee Palace is _ .