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: What were the Saxon Palace and Brühl Palace in prewar Warsaw? 
 disfluent question: What building  no sorry What were the Saxon Palace and Brühl Palace in prewar Warsaw? 
 context: Exceptional examples of the bourgeois architecture of the later periods were not restored by the communist authorities after the war (like mentioned Kronenberg Palace and Insurance Company Rosja building) or they were rebuilt in socialist realism style (like Warsaw Philharmony edifice originally inspired by Palais Garnier in Paris). Despite that the Warsaw University of Technology building (1899–1902) is the most interesting of the late 19th-century architecture. Some 19th-century buildings in the Praga district (the Vistula’s right bank) have been restored although many have been poorly maintained. Warsaw’s municipal government authorities have decided to rebuild the Saxon Palace and the Brühl Palace, the most distinctive buildings in prewar Warsaw.
[EX A]: most distinctive buildings

[EX Q]: proper question: What functions usually lie with US Government ministers? 
 disfluent question: What functions reserved no no I mean usually lie with US Government ministers? 
 context: Reserved matters are subjects that are outside the legislative competence of the Scotland Parliament. The Scottish Parliament is unable to legislate on such issues that are reserved to, and dealt with at, Westminster (and where Ministerial functions usually lie with UK Government ministers). These include abortion, broadcasting policy, civil service, common markets for UK goods and services, constitution, electricity, coal, oil, gas, nuclear energy, defence and national security, drug policy, employment, foreign policy and relations with Europe, most aspects of transport safety and regulation, National Lottery, protection of borders, social security and stability of UK's fiscal, economic and monetary system.
[EX A]: None

[EX Q]: proper question: Which one of Fresno's hotels burned down? 
 disfluent question: What former no Which one of Fresno's hotels burned down? 
 context: Between the 1880s and World War II, Downtown Fresno flourished, filled with electric Street Cars, and contained some of the San Joaquin Valley's most beautiful architectural buildings. Among them, the original Fresno County Courthouse (demolished), the Fresno Carnegie Public Library (demolished), the Fresno Water Tower, the Bank of Italy Building, the Pacific Southwest Building, the San Joaquin Light & Power Building (currently known as the Grand 1401), and the Hughes Hotel (burned down), to name a few.
[EX A]:
Hughes Hotel

