Use a disfluent question or a proper question and find the answer to the question based on the given context or return None if an answer can't be found. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

[EX Q]: proper question: Who refused Buyantu? 
 disfluent question: What did er who refused Buyantu? 
 context: The fourth Yuan emperor, Buyantu Khan (Ayurbarwada), was a competent emperor. He was the first Yuan emperor to actively support and adopt mainstream Chinese culture after the reign of Kublai, to the discontent of some Mongol elite. He had been mentored by Li Meng, a Confucian academic. He made many reforms, including the liquidation of the Department of State Affairs (Chinese: 尚書省), which resulted in the execution of five of the highest-ranking officials. Starting in 1313 the traditional imperial examinations were reintroduced for prospective officials, testing their knowledge on significant historical works. Also, he codified much of the law, as well as publishing or translating a number of Chinese books and works.
[EX A]: None

[EX Q]: proper question: What type of skills does the market bid down compensation for? 
 disfluent question: What forces er what type of skills does the market bid down compensation for? 
 context: Economist Joseph Stiglitz argues that rather than explaining concentrations of wealth and income, market forces should serve as a brake on such concentration, which may better be explained by the non-market force known as rent-seeking. While the market will bid up compensation for rare and desired skills to reward wealth creation, greater productivity, etc., it will also prevent successful entrepreneurs from earning excess profits by fostering competition to cut prices, profits and large compensation. A better explainer of growing inequality, according to Stiglitz, is the use of political power generated by wealth by certain groups to shape government policies financially beneficial to them. This process, known to economists as rent-seeking, brings income not from creation of wealth but from grabbing a larger share of the wealth that would otherwise have been produced without their effort
[EX A]: None

[EX Q]: proper question: How did Yale introduce a new era in football? 
 disfluent question: How did Harvard introduce a new era in football no sorry Yale? 
 context: Harvard's athletic rivalry with Yale is intense in every sport in which they meet, coming to a climax each fall in the annual football meeting, which dates back to 1875 and is usually called simply The Game. While Harvard's football team is no longer one of the country's best as it often was a century ago during football's early days (it won the Rose Bowl in 1920), both it and Yale have influenced the way the game is played. In 1903, Harvard Stadium introduced a new era into football with the first-ever permanent reinforced concrete stadium of its kind in the country. The stadium's structure actually played a role in the evolution of the college game. Seeking to reduce the alarming number of deaths and serious injuries in the sport, Walter Camp (former captain of the Yale football team), suggested widening the field to open up the game. But the stadium was too narrow to accommodate a wider playing surface. So, other steps had to be taken. Camp would instead support revolutionary new rules for the 1906 season. These included legalizing the forward pass, perhaps the most significant rule change in the sport's history.
[EX A]:
None