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.

Example Input: proper question: When did the age of Imperialism begin? 
 disfluent question: How umm no when did the age of Imperialism begin? 
 context: The Age of Imperialism, a time period beginning around 1700, saw (generally European) industrializing nations engaging in the process of colonizing, influencing, and annexing other parts of the world in order to gain political power.[citation needed] Although imperialist practices have existed for thousands of years, the term Age of Imperialism generally refers to the activities of European powers from the early 18th century through to the middle of the 20th century, for example, the The Great Game in Persian lands, the Scramble for Africa and the Open Door Policy in China.
Example Output: around 1700

Example Input: proper question: What divides Downtown Fresno? 
 disfluent question: What extends Downtown Fresno, oh actually what divides it? 
 context: The West Side of Fresno, also often called Southwest Fresno, is one of the oldest neighborhoods in the city. The neighborhood lies southwest of the 99 freeway (which divides it from Downtown Fresno), west of the 41 freeway and south of Nielsen Ave (or the newly constructed 180 Freeway), and extends to the city limits to the west and south. The neighborhood is traditionally considered to be the center of Fresno's African-American community. It is culturally diverse and also includes significant Mexican-American and Asian-American (principally Hmong or Laotian) populations.
Example Output: None

Example Input: proper question: In 1758 what was duc de Choiseul's plan for unfocused military efforts? 
 disfluent question: In 1758 no wait 1785 no I'm sorry in 1758, what was duc de Choiseul's plan for unfocused military efforts? 
 context: In the aftermath of generally poor French results in most theaters of the Seven Years' War in 1758, France's new foreign minister, the duc de Choiseul, decided to focus on an invasion of Britain, to draw British resources away from North America and the European mainland. The invasion failed both militarily and politically, as Pitt again planned significant campaigns against New France, and sent funds to Britain's ally on the mainland, Prussia, and the French Navy failed in the 1759 naval battles at Lagos and Quiberon Bay. In one piece of good fortune, some French supply ships managed to depart France, eluding the British blockade of the French coast.
Example Output:
None