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: Who started the IPCC Trust Fund? 
 disfluent question: Who funds or uh who started the IPCC Trust Fund? 
 context: The IPCC receives funding through the IPCC Trust Fund, established in 1989 by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO), Costs of the Secretary and of housing the secretariat are provided by the WMO, while UNEP meets the cost of the Depute Secretary. Annual cash contributions to the Trust Fund are made by the WMO, by UNEP, and by IPCC Members; the scale of payments is determined by the IPCC Panel, which is also responsible for considering and adopting by consensus the annual budget. The organisation is required to comply with the Financial Regulations and Rules of the WMO.
Example Output: the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO),

Example Input: proper question: What kind of rock did the hero Siegfried discover? 
 disfluent question: What kind of tribe er rock did the hero Siegfried discover? 
 context: Germanic tribes crossed the Rhine in the Migration period, by the 5th century establishing the kingdoms of Francia on the Lower Rhine, Burgundy on the Upper Rhine and Alemannia on the High Rhine. This Germanic Heroic Age is reflected in medieval legend, such as the Nibelungenlied which tells of the hero Siegfried killing a dragon on the Drachenfels (Siebengebirge) (dragons rock), near Bonn at the Rhine and of the Burgundians and their court at Worms, at the Rhine and Kriemhild's golden treasure, which was thrown into the Rhine by Hagen.
Example Output: None

Example Input: proper question: In what year was the Darfur Report issued? 
 disfluent question: In what year was the Kalven or is it the Darfur Report, what year was it issued? 
 context: The university experienced its share of student unrest during the 1960s, beginning in 1962, when students occupied President George Beadle's office in a protest over the university's off-campus rental policies. After continued turmoil, a university committee in 1967 issued what became known as the Kalven Report. The report, a two-page statement of the university's policy in social and political action, declared that To perform its mission in the society, a university must sustain an extraordinary environment of freedom of inquiry and maintain an independence from political fashions, passions, and pressures. The report has since been used to justify decisions such as the university's refusal to divest from South Africa in the 1980s and Darfur in the late 2000s.
Example Output:
None