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.

Let me give you an example: proper question: In what year did the U of C become one of 7 founding members of the Association of Chicago Universities?
disfluent question: In what year did Robert Harper or did the U of C become one of 7 founding members of the Association of Chicago Universities?
context: Founded by the American Baptist Education Society with a donation from oil magnate and wealthiest man in history John D. Rockefeller, the University of Chicago was incorporated in 1890; William Rainey Harper became the university's first president in 1891, and the first classes were held in 1892. Both Harper and future president Robert Maynard Hutchins advocated for Chicago's curriculum to be based upon theoretical and perennial issues rather than on applied sciences and commercial utility. With Harper's vision in mind, the University of Chicago also became one of the 14 founding members of the Association of American Universities, an international organization of leading research universities, in 1900.
The answer to this example can be: None
Here is why: The answer to the above question is not found from the context hence it is not answerable so the output is 'None' so it is a positive example.

OK. solve this:
proper question: When do members vote of the beginning form of the bill?
disfluent question: What is considered at a meeting no when do members vote of the beginning form of the bill?
context: Stage 3 is the final stage of the bill and is considered at a meeting of the whole Parliament. This stage comprises two parts: consideration of amendments to the bill as a general debate, and a final vote on the bill. Opposition members can table wrecking amendments to the bill, designed to thwart further progress and take up parliamentary time, to cause the bill to fall without a final vote being taken. After a general debate on the final form of the bill, members proceed to vote at Decision Time on whether they agree to the general principles of the final bill.
Answer:
None