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: April Fool's Day , was a day of laughing and jokes. This day is kept in many countries, not only in Britain and the USA. This is a day to play jokes and make people laugh. Nobody knows when was the beginning of this custom. Some people connect it with the end of winter and the return of spring which make people merry and ready to play jokes. In Scotland young people were sent for hen's teeth or bird's milk and everybody laughed when they could find such things. In the USA and Britain some people could place a sign on a person's back with the words "push me!" Children often tell a grown-up that his sock is torn or he has something black on his face, and then shout "April Fool!" There is also the old purse trick. A purse is left lying in the street, but when someone wants to take it, it is quickly pulled back by a string which the hidden joker holds in his hand. Or the purse may be filled with stones. Sometimes invitations are sent to people, asking them to come and visit somebody, but when they come they see that nobody expects them. Some people like to telephone to the zoo on the day and ask for Mr. Fish, Miss Fox or Mrs. Cat. All these jokes are very old but still they make people laugh.
Answer: Someone

Output: _ knows when the custom of April Fool's Day started.

Input: Consider Input: Article: Gu Changwei was the first Chinese cinematographer to be nominated for an Oscar, he is regarded by Zhang Yimou as the best cinematographer in China. Gu was behind the camera for many of Zhang Yimou's famous films including the one that rocketed Zhang to fame: "Red Sorghum ". And now this master of the visual has taken on his first directing role with the film "Peacock". So Gu Changwei has come out from behind the camera into the spotlight . Gu Changwei is very serious about his directing "Peacock". To get the authentic atmosphere, Gu took his film crew to the city of Anyang in central China's Henan province where the story takes place, to shoot the film. He chose all new actors because he didn't want "star" appeal to weaken the power of the story, and he also had his actors trained in the local dialect. For this film Gu has been able to get out from behind the camera to manage every aspect of the film, and to realize his own ideals in movie-making. "Peacock" is about the life of an average family in a small town in Henan province in the late 70s and early 80s. Gu chose this story for his first movie because he grew up during this same period and it struck a chord with him. "Peacock" wrapped up production in June, 2004. It's aimed at the foreign film market and will be entered in February's Berlin Film Festival, and released in China at the same time. But at the end of last October, Gu took "Peacock" to his Alma Mater, the Beijing Film Academy, one of the most famous film colleges in China, to hold a preview. The film was warmly received by both teachers and students.
Answer: it was not easy for him, a fresh hand, to invite stars to join him

Output: Gu didn't employ "stars" in his film because _ .

Input: Consider Input: Article: Every day Yang Hongwei takes the bus home from work, staring silently at the European-style villas , luxury cars and twinkling lights from the shopping center that he sees through the window. Yang works for a software company in Zhongguancun. He dreams of such a life, away from poverty, and that hope has kept him in Beijing for three years since he graduated from university. Soon Yang squeezes his way off the bus to the reality of his life: his home--a 10-square-metre room that costs 550 yuan(81 US dollars) or about one-fifth of his salary in rent every month. It's very cold inside the house as it has no central heating system. He has to stand the long and cold winter. Determined to achieve his dream, Yang says he has changed jobs "numerous" times in the past three years and is considering quitting his present job. Yang's frustration over his life as a migrant is shared by many other graduates that have moved into big cities. Together they have come to be called the "ant tribe", a term created by Chinese sociologists to describe the struggles of young migrants, who, armed with their diplomas, flood to big cities in hopes of a better life only to put up with low-paying jobs and poor living conditions. They share every similarity with ants. They live in colonies in crowded areas. They're intelligent and hardworking, yet unknown and underpaid. The term, sociologists have said, also reflects their helplessness in a world governed by the law of the concrete jungle--only the strongest survive. A survey in Ant TribeII found nearly 30 percent of the "ants" are graduates of famous key universities--almost three times the percentage of 2009. Most have degrees in popular majors, such as medicine, engineering, economics and management. In addition, 7.2 percent of the "ants" have at least a master's degree compared to 1.6 percent in 2009. Most said the economic recovery did not really improve their financial situations, and 66 percent said their incomes fell short of their expectations, the survey also found. For two years, Lian Si, a post-doctoral fellow at the Center for Chinese and Global Affairs of Peking University, who has studied the phenomenon, led a team of more than 100 graduate students to follow the groups in university towns like Beijing, Shanghai, Guangzhou, Wuhan and Xi'an. Lian evaluates the total population of the "ant community" in major cities at one million across China, with about 100,000 found in Beijing alone. Lian predicts that an increasingly challenging job market will see the ant tribe growing further in number. Another 6.3 million graduates are expected to join migrant workers and other job hunters in what promises to be a fierce labour competition. The ant tribe's embarrassing living situations have become a serious social issue, and the government should develop "second-and-third-tier cities" to attract more graduates from big cities. However, "ants" expect more study and training opportunities in big cities, which keeps them in positive mindsets despite their situations. As in the case of Yang, he is optimistic about getting a new job soon, having received eight interview offers in a week after sending out his resume. The prospect of landing a higher-paying job keeps him hopeful of moving out of the slum district soon. The sooner the better.
Answer: to enjoy a busy life in a software company
Output: . Yang has worked in Beijing since graduation from university _ .