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.

Q: proper question: What type of venue is the Autumn Wielki? 
 disfluent question: What type of venue is the Chamber Opera no the Autumn Wielki? 
 context: Thanks to numerous musical venues, including the Teatr Wielki, the Polish National Opera, the Chamber Opera, the National Philharmonic Hall and the National Theatre, as well as the Roma and Buffo music theatres and the Congress Hall in the Palace of Culture and Science, Warsaw hosts many events and festivals. Among the events worth particular attention are: the International Frédéric Chopin Piano Competition, the International Contemporary Music Festival Warsaw Autumn, the Jazz Jamboree, Warsaw Summer Jazz Days, the International Stanisław Moniuszko Vocal Competition, the Mozart Festival, and the Festival of Old Music.

A: None
****
Q: proper question: Who are best known for uncovering the fossil of John B Watson? 
 disfluent question: Who are best known for uncovering the fossil of John B Watson? 
 context: Other prominent alumni include anthropologists David Graeber and Donald Johanson, who is best known for discovering the fossil of a female hominid australopithecine known as Lucy in the Afar Triangle region, psychologist John B. Watson, American psychologist who established the psychological school of behaviorism, communication theorist Harold Innis, chess grandmaster Samuel Reshevsky, and conservative international relations scholar and White House Coordinator of Security Planning for the National Security Council Samuel P. Huntington.

A: None
****
Q: proper question: What is the delta delimited in the South by? 
 disfluent question: What is the delta delimited in the West by, oh make that the South? 
 context: The mouth of the Rhine into Lake Constance forms an inland delta. The delta is delimited in the West by the Alter Rhein (Old Rhine) and in the East by a modern canalized section. Most of the delta is a nature reserve and bird sanctuary. It includes the Austrian towns of Gaißau, Höchst and Fußach. The natural Rhine originally branched into at least two arms and formed small islands by precipitating sediments. In the local Alemannic dialect, the singular is pronounced Isel and this is also the local pronunciation of Esel (Donkey). Many local fields have an official name containing this element.

A:
None
****